View allAll Photos Tagged nephrite
Nephritis (from the ancient Greek νεφρός - kidney; outdated kidney stone is a mineral of the amphibole group with a characteristic fibrous structure. One of the valuable qualities of this mineral is its extremely high toughness - jade is difficult to split. Jade has a wide palette of colors: from almost white through all shades of green (yellowish, grassy, emerald, marsh) to brown and almost black. There are still white, grayish, blue and red jade, but these varieties are rare and very valuable. Coloring depends on the content of iron and impurities of chromium and manganese. Samples with a uniform color are valued more than uneven (striped, spotty, “cloudy”). Nephrite is used as an ornamental stone and as a unique material for the manufacture of jewelry and decorative and artistic products. Since ancient times, jade has acquired particular importance in the culture of China, being in essence its "national stone".
Listenwave Photography
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What does not matter ?😜
1.What to photograph - Camera. 📷📱
2.Where to photograph - Place. 🌋
3.When to photograph -Time.🌅🌄
.
What is important ?😎
1.Study and tune the camera. 👨🔧
2.Learn where you are going.
3.Study the lighting at different times.🌞🌚
.
What's the secret?♀️
1.Feel the instrument, hear what it says. 🙏
2.Feel the atmosphere of the place, catch the wave. 🌊
3.Switch on .Catch the moment!⚡️
.
What to photograph?
✨Finding the observer, comes awareness!✨
Nephritis (from the ancient Greek νεφρός - kidney; outdated kidney stone is a mineral of the amphibole group with a characteristic fibrous structure. One of the valuable qualities of this mineral is its extremely high toughness - jade is difficult to split. Jade has a wide palette of colors: from almost white through all shades of green (yellowish, grassy, emerald, marsh) to brown and almost black. There are still white, grayish, blue and red jade, but these varieties are rare and very valuable. Coloring depends on the content of iron and impurities of chromium and manganese. Samples with a uniform color are valued more than uneven (striped, spotty, “cloudy”). Nephrite is used as an ornamental stone and as a unique material for the manufacture of jewelry and decorative and artistic products. Since ancient times, jade has acquired particular importance in the culture of China, being in essence its "national stone".
Listenwave Photography
.
What does not matter ?😜
1.What to photograph - Camera. 📷📱
2.Where to photograph - Place. 🌋
3.When to photograph -Time.🌅🌄
.
What is important ?😎
1.Study and tune the camera. 👨🔧
2.Learn where you are going.
3.Study the lighting at different times.🌞🌚
.
What's the secret?♀️
1.Feel the instrument, hear what it says. 🙏
2.Feel the atmosphere of the place, catch the wave. 🌊
3.Switch on .Catch the moment!⚡️
.
What to photograph?
✨Finding the observer, comes awareness!✨
youtu.be/-jzwzkvMag8
Situated in a corner of Merrion Square, a public park in Dublin city centre, this unconventional statue sees Oscar Wilde looking across the road to number 1 Merrion Square, the house in which he grew up.
The statue was sculpted by Danny Osborne and unveiled in 1997. It's made up of a several exotic rock types, including larvikite (blue pearl granite) from the Oslo Fjord, green nephrite jade from Canada, pink thulite from Norway, and black Indian granite, all of which contirbutue to its distinctive colours.
This is Malachite from the Star of the Congo Mine, Katanga Pce., Dem Rep of Congo
en.wikipedia.org/wiki/Malachite
Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and deep, underground spaces, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare, but occur as slender to acicular prisms. Pseudomorphs after more tabular or blocky azurite crystals also occur.[5]
The stone's name derives (via Latin: molochītis, Middle French: melochite, and Middle English melochites) from Greek Μολοχίτης λίθος molochites lithos, "mallow-green stone", from μολόχη molochē, variant of μαλάχη malāchē, "mallow".[6] The mineral was given this name due to its resemblance to the leaves of the mallow plant.[7] Copper (Cu2+) gives malachite its green color.[8]
Malachite was mined from deposits near the Isthmus of Suez and the Sinai as early as 4000 BCE.[9]
It was extensively mined at the Great Orme Mines in Britain 3,800 years ago, using stone and bone tools. Archaeological evidence indicates that mining activity ended c. 600 BCE, with up to 1,760 tonnes of copper being produced from the mined malachite.[10][11]
Here is information on Katanga DR Congo
www.mindat.org/locentry-1306408.html
www.visittucson.org/tucson-gem-mineral-fossil-showcase/
Every year the world-renowned Tucson Gem, Mineral & Fossil Showcase is like a time portal, a trip around the world, and a treasure hunt all rolled into one. Every winter, more than 65,000 guests from around the globe descend upon Tucson, AZ, to buy, sell, trade, and bear witness to rare and enchanting gems, minerals, and fossils at more than 50 gem show locations across the city. If you're planning a winter visit to Tucson, you won't want to miss this three-week-long event filled with shows, related events, a free day at the gem & mineral museum, and much, much more!
"Whether you’re looking for a $5 shimmering crystal necklace or a show-stopping $200,000 crystallized rock from an exotic location, the Tucson Gem, Mineral, & Fossil Shows have something for everyone.
www.visittucson.org/blog/post/gems-and-minerals/
The theme this year was Shades of Green- Experience the Magic. The theme for next year's show will be Red, White, and Blue Celebrate the Spirit of Minerals
xpopress.com/news/article/783/shades-of-green-70th-annual...
Green-colored gemstones are part of almost every mineral group. Famous members include emeralds (beryl); chrysoprase, bloodstone, aventurine, imperial jasper, kabamba jasper, and ocean jasper (quartz); green tourmaline; green sapphires; nephrite jade and imperial green jadeite; as well as tsavorite, grossular, demantoid, and drusy uvarovite (garnets).
There are also the soloists: malachite, amazonite, chrysoberyl, chrome diopside, maw-sit-sit, drusy liebethenite from Congo, fluorite, peridot, gaspeite, lime magnesite, seraphinite, prehnite, idocrase, and serpentine.
Green gems vary in hue, chroma (saturation), lightness, and tint, each with an identifiable green shade. They evoke memories of picturesque and scenic vistas, gardens, and lush meadows. Green is considered relaxing and pleasing to the eye and symbolizes nature, spring, healing, fertility, rebirth, and regeneration. It is linked to over thirty similes, idioms, and phrases used in everyday language.
TGMS 2025
Tucson Gem Show 2025
From the Eel River. This piece contains a relatively high amount of muttonfat (white) jade, which is highly prized. I've seen similar material listed as nephrite, but the feel of it, as I was cabbing was somewhat more like jadeite. It is, of course, possible that it is somewhere in the transitional zone.
Vrachtschip Nephrite, passeert hier ter hoogte van Hoek van Holland.
IMO: 9549657
Name: Nephrite
Ship type: General Cargo
Flag: Russia
Gross Tonnage: 3505 t
Deadweight: 5039 t
Size: 89.96 x 14.58 m
Year Built: 2012
Status: Active
Port of Rotterdam
Row 1: Chatoyant black jade, Big Sur jade, Vesuvianite (var. Californite)
Row 2: Dinosaur bone (x2)
Row 3: Richardson's thunderegg core
Row 4: Silver lace "onyx"
Look for selected solo portraits soon
Some notes:
1. From the top row, Vesuvianite/Californite is often sold as "California jade" or "Pulga jade." It is not jade, and it is a shame that it is used as a simulant, as it is beautiful in its own right. A few hints to show that it isn't jade include its translucency (greater than most CA jade), the apple green color, and the "clouds."
2. The thunderegg core is unlike any other I've seen. I believe that it is leveling lines, cut at an odd angle.
3. Bottom row and background slab: Silver lace onyx is not onyx (agate), but rather what is sometimes called "Cave onyx" -- a form of calcite. The black plumes, though, really are silver ore.
Note: the Vesuvianite is displayed in the top row, alongside the jade, because it is often used as a jade simulant (under trade names like "California jade" or "Pulga jade"), although it appears quite different from real California-sourced jade. Both jade and Vesuvianite are metamorphic, but the method of their formation and their "feeder stone" are different.
sea-foamed waves or manta ray?
One of many fine specimens in the UBC Geology Dept.'s Pacific Museum of the Earth, University of British Columbia, Vancouver, Canada (museum is geotagged)
Polished free-form masterpiece from the Polar Mine, near Dease Lake, British Columbia, Canada. Polar Jade is liquid dark green with bright green flecks which yields _very_ attractive jade carvings_
I collected and cut this years ago (there should be another 1-cab slablet or two somewhere, but it was a small cobble) on Agate Beach, at the recently renamed Sue-meg State Park.
While it doesn't look like typical California Coast jade (nephrite), it does seem to be a rare piece of jadeite. It polishes like it, makes slightly "foamy" swarf like jade, and has a specific gravity of 3.32 -- right smack-dab in the middle of the jadeite range.
It is primarily white jade, with some dark green. The yellow in the healed fractures may or may not be jade
明眸朱唇 軟玉生香
Bright eyes and red lips
Nephrite produce aroma
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Nephrite jade rock polished and large... found in Snohomish County, state of Washington. Seen & photographed at Rice Museum Of Rocks & Minerals - Hillsboro, Oregon.
The Rice Museum is now open Thursday through Sunday.
Rockhounds got invited to a jade prospect near Jeffery City , Wyoming. Each could take home a “pocket rock”.
Poppy jasper/orbicular jasper Stone Canyon jasper/brecciated
jasper
jasp-agate
Brazilian agate
Montana agate
Mookaite
whale bone
dino bone
Nevada Picture jasper
Vesuvianite
Moss agate?
Ornement de poitrine "Gorgone"
Oeuvre de Wilhelm Lucas von Cranach (Allemagne, 1861-1918), orfèvre
de.wikipedia.org/wiki/Wilhelm_Lucas_von_Cranach
Berlin, 1902
Exécution : Gebrüder Friedländer, Berlin
Gravure Max Haseroth, Berlin
Or, opale, néphrite, jaspe, émeraudes, perle
Prêt d'une collection privée, Berlin
Musée des arts décoratifs / Kunstgewerbemuseum, Berlin
www.smb.museum/en/museums-institutions/kunstgewerbemuseum...
Photo Annie Dalbera
This is an unusually swirled piece of nephrite, with some slight chatoyance. It almost resembles seraphinite, but it's definitely jade.
Nephrite jade has a chemical composition of Ca2(Mg,Fe)5Si8O22(OH)2. When the proportion of iron to magnesium is higher, the jade is darker green. With the amounts of iron and magnesium being variable, all iron yields "black" jade; all magnesium yields white ("mutton fat") jade. In this piece, one can see the extremes and in between.
Jade from China
20th century, nephrite
Asian Art Museum of San Francisco, San Francisco, California
20231112_154251
In death, larger than life… Oscar Fingal O'Flahertie Wills Wilde, lounging in Merrion Square, Dublin, opposite the grand family house in which he lived until his early 20s. This rather jolly sculpture by Danny Osborne was commissioned by the Guinness company and unveiled in 1997. Oscar’s father, Sir William Wilde, was a noted aural and ophthalmic surgeon, as well as an archaeologist, ethnologist, antiquarian, biographer, statistician, naturalist, topographer, historian and folklorist… little wonder his son was such a self-proclaimed genius!
So to the sculpture: Wilde is wearing a green smoking jacket with a pink collar, long trousers and shiny black shoes. The jacket is made from nephrite jade, sourced in Canada; the collar from thulite, a rare stone sourced from Norway; his head and hands are carved from Guatemalan jade; his trousers from larvikite (a crystalline stone also from Norway) and his shiny shoes are black granite.
Cowell.Captain Matthew Flinders charted this harbour entrance in 1802 but it was Governor Gawler who visited by ship in 1840 and named it Franklin Harbour after the governor of Van Diemen’s Land who had been a seaman on Flinders’ ship the Investigator in 1802. The McKechnie brothers took up a pastoral lease from here to Cleve in 1853. The land was surveyed for closer settlement (the Hundred of Playford 1878) and the town surveyed and gazetted in 1880. Governor Jervois named it after a friend of his Sir John Cowell. The new wheat farmers needed a port and the first jetty opened at Cowell in 1882. The District Council was formed in 1888 a sign of progress in the settlement. The old buildings of Cowell include the Post Office 1884 now the town museum; the Institute 1892 with additions in 1912; the District Council Offices 1912; the Methodist Church 1908; the Anglican Church 1909; the Masonic Lodge 1909;the former Baptist Church 1914, from 1933 Lutheran; the Franklin Harbour Hotel built in 1881 as a single storey hotel with the upper floored added in 1907; and the impressive Commercial Hotel built in 1910; the Police Station 1904; the former Bank of Adelaide 1908; the chaff mill 1908; RSL Hall 1953. In 1965 a deposit of jade (nephrite) was discovered in the hills west of Cowell and it is still mined there. It is the jade used in Chinese carvings and premier Cowell black jade is highly prized. The deposits are one of the largest in the world. Nearby Port Gibbon was used to ship out wheat from the earliest days. In 1915 a small town was surveyed here. During World War Two four concrete bomb shelters and radio towers 132 feet high were built to detect any Japanese enemy shipping heading towards the BHP naval ship building yards at Whyalla. By the time the shelters were completed peace had been declared. The shelters were sold to farmers in 1946. Two remain. In 2019 an artist was employed to paint the grain silos in Cowell. The artist chose a local cameleer and one of his beasts. It was completion in late 2019.
Row 1:
Stone Canyon jasper, unknown brecciated jasper, Black Butte jasper, Bird's Eye Rhyolite
Row 2:
Big Sur nephrite heel cut, Black jade, Victorville black jade, Clear Creek jadeite slablet (heel cut, partially drilled)
Row 3: mariposite, tigers eye, unknown breccia, dino bone (1-2 cabs)
Row 4: Brazilian agate, bacon agate, Montana agate, moss agate (possibly Maury Mountain)
On display at the Victoria & Albert museum in London, this 18th century octagonal box is made in nephrite jade with diamonds, rubies and emeralds set in gold.
The Mugal empire covered the Indian sub-continent, Pakistan and Afghanistan. Established in the 16th century by Prince Babur it reached its peak in the 17th century covering an area of 4 million squared km. To place the period think of the Taj Mahal.
This is a Malachite formation from the Star of Congo Mine, Democratic Republic of the Congo. labelled The Wisdom Tree.
en.wikipedia.org/wiki/Etoile_mine
The Etoile Mine (also known as L'Etoile du Congo Mine, Kalukuluku, or Star of the Congo Mine)[1] is an open-pit copper mine on the outskirts of Lubumbashi in Katanga Province of the Democratic Republic of the Congo (DRC). Chemaf (Chemical of Africa) owns the license. Chemaf is 95% owned by Shalina Resources and 5% by the DRC government.[2]
The Etoile orebody lies within the copperbelt that stretches from Luanshya in Zambia to Kolwezi in the DRC. As with many of the deposits in southern Katanga, it is a stratiform copper-cobalt deposit. An enlarged oxide cap about 50 metres (160 ft) overlays an inclined stratiform sulphide deposit.[4]
en.wikipedia.org/wiki/Malachite
Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and deep, underground spaces, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare, but occur as slender to acicular prisms. Pseudomorphs after more tabular or blocky azurite crystals also occur.[5]
The stone's name derives (via Latin: molochītis, Middle French: melochite, and Middle English melochites) from Greek Μολοχίτης λίθος molochites lithos, "mallow-green stone", from μολόχη molochē, variant of μαλάχη malāchē, "mallow".[6] The mineral was given this name due to its resemblance to the leaves of the mallow plant.[7] Copper (Cu2+) gives malachite its green color.[8]
Malachite was mined from deposits near the Isthmus of Suez and the Sinai as early as 4000 BCE.[9]
It was extensively mined at the Great Orme Mines in Britain 3,800 years ago, using stone and bone tools. Archaeological evidence indicates that mining activity ended c. 600 BCE, with up to 1,760 tonnes of copper being produced from the mined malachite.[10][11]
Here is information on Katanga DR Congo
www.mindat.org/locentry-1306408.html
www.visittucson.org/tucson-gem-mineral-fossil-showcase/
Every year the world-renowned Tucson Gem, Mineral & Fossil Showcase is like a time portal, a trip around the world, and a treasure hunt all rolled into one. Every winter, more than 65,000 guests from around the globe descend upon Tucson, AZ, to buy, sell, trade, and bear witness to rare and enchanting gems, minerals, and fossils at more than 50 gem show locations across the city. If you're planning a winter visit to Tucson, you won't want to miss this three-week-long event filled with shows, related events, a free day at the gem & mineral museum, and much, much more!
"Whether you’re looking for a $5 shimmering crystal necklace or a show-stopping $200,000 crystallized rock from an exotic location, the Tucson Gem, Mineral, & Fossil Shows have something for everyone.
www.visittucson.org/blog/post/gems-and-minerals/
The theme this year was Shades of Green- Experience the Magic. The theme for next year's show will be Red, White, and Blue Celebrate the Spirit of Minerals
xpopress.com/news/article/783/shades-of-green-70th-annual...
Green-colored gemstones are part of almost every mineral group. Famous members include emeralds (beryl); chrysoprase, bloodstone, aventurine, imperial jasper, kabamba jasper, and ocean jasper (quartz); green tourmaline; green sapphires; nephrite jade and imperial green jadeite; as well as tsavorite, grossular, demantoid, and drusy uvarovite (garnets).
There are also the soloists: malachite, amazonite, chrysoberyl, chrome diopside, maw-sit-sit, drusy liebethenite from Congo, fluorite, peridot, gaspeite, lime magnesite, seraphinite, prehnite, idocrase, and serpentine.
Green gems vary in hue, chroma (saturation), lightness, and tint, each with an identifiable green shade. They evoke memories of picturesque and scenic vistas, gardens, and lush meadows. Green is considered relaxing and pleasing to the eye and symbolizes nature, spring, healing, fertility, rebirth, and regeneration. It is linked to over thirty similes, idioms, and phrases used in everyday language.
TGMS 2025
Tucson Gem Show 2025
Cowell.Captain Matthew Flinders charted this harbour entrance in 1802 but it was Governor Gawler who visited by ship in 1840 and named it Franklin Harbour after the governor of Van Diemen’s Land who had been a seaman on Flinders’ ship the Investigator in 1802. The McKechnie brothers took up a pastoral lease from here to Cleve in 1853. The land was surveyed for closer settlement (the Hundred of Playford 1878) and the town surveyed and gazetted in 1880. Governor Jervois named it after a friend of his Sir John Cowell. The new wheat farmers needed a port and the first jetty opened at Cowell in 1882. The District Council was formed in 1888 a sign of progress in the settlement. The old buildings of Cowell include the Post Office 1884 now the town museum; the Institute 1892 with additions in 1912; the District Council Offices 1912; the Methodist Church 1908; the Anglican Church 1909; the Masonic Lodge 1909;the former Baptist Church 1914, from 1933 Lutheran; the Franklin Harbour Hotel built in 1881 as a single storey hotel with the upper floored added in 1907; and the impressive Commercial Hotel built in 1910; the Police Station 1904; the former Bank of Adelaide 1908; the chaff mill 1908; RSL Hall 1953. In 1965 a deposit of jade (nephrite) was discovered in the hills west of Cowell and it is still mined there. It is the jade used in Chinese carvings and premier Cowell black jade is highly prized. The deposits are one of the largest in the world. Nearby Port Gibbon was used to ship out wheat from the earliest days. In 1915 a small town was surveyed here. During World War Two four concrete bomb shelters and radio towers 132 feet high were built to detect any Japanese enemy shipping heading towards the BHP naval ship building yards at Whyalla. By the time the shelters were completed peace had been declared. The shelters were sold to farmers in 1946. Two remain. In 2019 an artist was employed to paint the grain silos in Cowell. The artist chose a local cameleer and one of his beasts. It is due for completion in late 2019.
This is Dioptase from the Mammoth-St. Anthony Mine, Tiger, Arizona, USA courtesy of the Flagg Mineral Foundation.
en.wikipedia.org/wiki/Dioptase
Dioptase is an intense emerald-green to bluish-green mineral that is cyclosilicate of copper. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is Cu6Si6O18·6H2O, also reported as CuSiO2(OH)2. It has a Mohs hardness of 5, the same as tooth enamel. Its specific gravity is 3.28–3.35, and it has two perfect and one very good cleavage directions. Additionally, dioptase is very fragile, and specimens must be handled with great care. It is a trigonal mineral, forming six-sided crystals that are terminated by rhombohedra.
Late in the 18th century, copper miners at the Altyn-Tyube (Altyn-Tube) mine, Karagandy Province, Kazakhstan[3] thought they had found the emerald deposit of their dreams. They found fantastic cavities in quartz veins in a limestone rock, filled with thousands of lustrous transparent emerald-green crystals. The crystals were dispatched to Moscow, Russia, for analysis. However, the mineral's inferior hardness of 5 compared with emerald's greater hardness of 8 easily distinguished it. Eventually, in 1797, the mineralogist Fr. René Just Haüy determined that the enigmatic Altyn-Tyube mineral was new to science and named it dioptase (Greek, dia, "through" and optos, "visible"), alluding to the internal cleavage planes that can be seen inside unbroken crystals.[5]
Dioptase is an uncommon mineral found mostly in desert regions where it forms as a secondary mineral in the oxidized zone of copper sulfide mineral deposits. However, the process of its formation is not simple. The oxidation of copper sulfides should be insufficient to crystallize dioptase, as silica is normally minutely soluble in water except at highly alkaline pH. The oxidation of sulfides will generate highly acidic fluids rich in sulfuric acid that should suppress silica's solubility. However, in dry climates and with enough time, especially in areas of a mineral deposit where acids are buffered by carbonate, minute quantities of silica may react with dissolved copper forming dioptase and chrysocolla.
www.visittucson.org/tucson-gem-mineral-fossil-showcase/
Every year the world-renowned Tucson Gem, Mineral & Fossil Showcase is like a time portal, a trip around the world, and a treasure hunt all rolled into one. Every winter, more than 65,000 guests from around the globe descend upon Tucson, AZ, to buy, sell, trade, and bear witness to rare and enchanting gems, minerals, and fossils at more than 50 gem show locations across the city. If you're planning a winter visit to Tucson, you won't want to miss this three-week-long event filled with shows, related events, a free day at the gem & mineral museum, and much, much more!
"Whether you’re looking for a $5 shimmering crystal necklace or a show-stopping $200,000 crystallized rock from an exotic location, the Tucson Gem, Mineral, & Fossil Shows have something for everyone.
www.visittucson.org/blog/post/gems-and-minerals/
The theme this year was Shades of Green- Experience the Magic. The theme for next year's show will be Red, White, and Blue Celebrate the Spirit of Minerals
xpopress.com/news/article/783/shades-of-green-70th-annual...
Green-colored gemstones are part of almost every mineral group. Famous members include emeralds (beryl); chrysoprase, bloodstone, aventurine, imperial jasper, kabamba jasper, and ocean jasper (quartz); green tourmaline; green sapphires; nephrite jade and imperial green jadeite; as well as tsavorite, grossular, demantoid, and drusy uvarovite (garnets).
There are also the soloists: malachite, amazonite, chrysoberyl, chrome diopside, maw-sit-sit, drusy liebethenite from Congo, fluorite, peridot, gaspeite, lime magnesite, seraphinite, prehnite, idocrase, and serpentine.
Green gems vary in hue, chroma (saturation), lightness, and tint, each with an identifiable green shade. They evoke memories of picturesque and scenic vistas, gardens, and lush meadows. Green is considered relaxing and pleasing to the eye and symbolizes nature, spring, healing, fertility, rebirth, and regeneration. It is linked to over thirty similes, idioms, and phrases used in everyday language.
TGMS 2025
Tucson Gem Show 2025
I wanted to see how accurate a purist rendition of this show I love could be.
From left-to-right:
Rose Quartz, Greg Universe, Connie Maheswaran, Steven Universe, Pearl, Garnet, Lapis Lazuli, Pumpkin, Peridot, Spinel, Nephrite, and Blue Diamond.
in a glass cage, basement of Musée de Jade, Old Quebec City
zoom in to see the green flecks in one of the world's finest nephrite jades
This piece of nephrite was found at Dry Lagoon, in The Humboldt Lagoons State Park. There is way more to find here than just agate or jasper. Jade, whale bone and petrified wood can be found, even if they are not common.
This was photographed late, because I wanted to get it properly identified. It passes the hardness, specific gravity and feel tests. The dark green and darker green striations look right, as does the pattern of wear.
It has been lightly treated with mineral oil to enhance the natural luster.
It is likely that it came down the Klamath River, which is known for jade.