View allAll Photos Tagged labradorite
2.75x1.75 in
Ampandrandrava, Beraketa, Dept Bekily,Atsimo Andrefana regn,Toliara(Tuléar) Prov, Madagascar
Smile on Saturday - Iridescent
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Once upon a bye I used to collect rocks and minerals. This fine sample of Labradorite looks quite dull .. until you catch it in the right light, at which point the colours burst forth!
A dark pebble? Catch the light and it flashes from deep inside with iridescent veins of peacock blue, greens, golds and rusts.
When labradorite cooled from a melt, silicate minerals, albite and anorthite, that were miscible at high temperatures became incompatible and separated into two phases. The phases are arranged in stacked alternate layers and it is these that produce the iridescent colours by multi-layer interference.
The colours of a coated camera lens are produced in the same way.
More about labradorescence...
Bueno pues ya está hecha!!
Con los 'briolettes' de "mystic labradorite" he hecho tres flores, el centro son jades de diferentes verdes. He usado muchos cueros de distintos tamaños, tonalidades y he colocado algunos colgantitos vintaj.
Definitivamente, me gusta y me la quedo pa' mi..... "por que yo lo valgo"
The Inuit peoples claim Labradorite fell from the frozen fire of the Aurora Borealis, an ordinary stone that transforms to the extraordinary, shimmering in a mystical light that separates the waking world from unseen realms.
Labradorite is a feldspar mineral. Labradorite can display an iridescent optical effect (or schiller) known as labradorescence. The term labradoresence was coined by Ove Balthasar Bøggild, who defined it (labradorization) as follows:[5]
Labradorization is the peculiar reflection of the light from submicroscopical planes orientated in one direction (rarely in two directions); these planes have never such a position that they can be expressed by simple indices, and they are not directly visible under the microscope.
A labradorite and silver necklace. At least I think that's what the stones are. Made by a dear friend. I haven't worn it in ages - I don't get dressed up much these days. Actually I don't get dressed much these days! Just kidding, but we don't go out much despite our vaccinations, so I was happy to have a reason to get it out of the drawer.
Admin: the flower is 1 3/8 inches from tip to tip, so I think the square crop fits the 3 inch rule - if not, please feel free to delete it.
Macro Mondays - Rock
LACPIXEL - 2018
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Iridescent polished Labradorite, a mineral that forms triclinic crystals. Y’all old folks who read titles may already be singing the soundtrack to Hair. Comments welcome on whether the 5th Dimension version of “Aquarius” is better than the Broadway cast performance on Ed Sullivan.
0.8:1 near-Macro, f/8, with an additional 1.4 digital crop in camera. For the #Crystal theme in the #FlickrFriday group. Happy Flickr Friday!
Naturally made crystal patterns, colors produced by labradorescence (it's a real thing). Depending upon the incidence of the light, the colors of this mineral can be a dull blue green through all the colors of the rainbow. The colors change and come and go by turning the stone in bright light. It is literally a natural kaleidoscope.
Labradorite is a calcium-rich feldspar mineral exhibiting iridescence (schiller effect).
The base color of labradorite is a dark smoky gray, but when light strikes the stone in a particular direction, it displays striking rainbow-colored reflections. Most typically, these metallic tints are violet, blue and green; but sometimes yellow, orange and red can be seen. This effect is so unique to labradorite that it is referred to as labradorescence.
Labradorization is the peculiar reflection of the light from submicroscopical planes orientated in one direction (rarely in two directions); these planes have never such a position that they can be expressed by simple indices, and they are not directly visible under the microscope.
See base photo of the stone against a cm scale. www.flickr.com/photos/126878250@N07/53081625082/in/datepo... This image is approx 1cmx1cm. It is possible to see the inclusion on the original base image.
This waterfall is under a bridge over the Wallkill River. I was told so many things are named -kill around here because it means creek. The blue/purple is naturally in a lot of stones around here, however I used some saturation to highlight it
Labradorite ((Ca, Na)(Al, Si)4O8) is a calcium-enriched feldspar mineral first identified in Labrador, Canada, which can display an iridescent effect (schiller).
Labradorite is an intermediate to calcic member of the plagioclase series. It has an anorthite percentage (%An) of between 50 and 70. The specific gravity ranges from 2.68 to 2.72. The streak is white, like most silicates. The refractive index ranges from 1.559 to 1.573 and twinning is common. As with all plagioclase members, the crystal system is triclinic, and three directions of cleavage are present, two of which are nearly at right angles and are more obvious, being of good to perfect quality (while the third direction is poor). It occurs as clear, white to gray, blocky to lath shaped grains in common mafic igneous rocks such as basalt and gabbro, as well as in anorthosites.
The geological type area for labradorite is Paul's Island near the town of Nain in Labrador, Canada. It has also been reported in Poland, Norway, Finland and various other locations worldwide, with notable distribution in Madagascar, China, Australia, Slovakia and the United States.
Labradorite occurs in mafic igneous rocks and is the feldspar variety most common in basalt and gabbro. The uncommon anorthosite bodies are composed almost entirely of labradorite. It also is found in metamorphic amphibolites and as a detrital component of some sediments. Common mineral associates in igneous rocks include olivine, pyroxenes, amphiboles and magnetite.
Labradorite can display an iridescent optical effect (or schiller) known as labradorescence. The term labradorescence was coined by Ove Balthasar Bøggild, who defined it (labradorization) as follows:
Labradorization is the peculiar reflection of the light from submicroscopical planes orientated in one direction (rarely in two directions); these planes have never such a position that they can be expressed by simple indices, and they are not directly visible under the microscope.
From Wikipedia:
The geological type area for labradorite is Paul's Island near the town of Nain in Labrador, Canada. It has also been reported in Norway, Finland and various other locations worldwide.
Labradorite occurs in mafic igneous rocks and is the feldspar variety most common in basalt and gabbro. The uncommon anorthosite bodies are composed almost entirely of labradorite. It also is found in metamorphic amphibolites and as a detrital component of some sediments. Common mineral associates in igneous rocks include olivine, pyroxenes, amphiboles and magnetite.
Labradorite can display an iridescent optical effect (or schiller) known as labradorescence.
Taken with macro lens with extension tube.
I used to wear this ring a lot in my working days because it was very comfortable. I'm not sure why I still have it really, but at least it's come in useful for this week's theme. The stone is Labradorite, so in different light or at a different angle it sometimes looks much more blue. It's next to a tiny hand-thrown raw porcelain ring dish, which is only about 1" across. The dried Hydrangea flowers, which I seem to rely on a lot at this time of year, are dyed. Your eyes are not deceiving you. :)
For this week's Macro Mondays group theme, Ring.
Photo de la collection de pierres semi-précieuses de ma conjointe / From my wife 's gems stones collection
Labradorite is a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common.
Here it is trimmed in 24K Gold in a paperweight.
It's a granite called Labradorite. The mineral that can be seen as blue/green cristals was named Labrador. This version is - emerald green.
The feldspar mineral, Labradorite, produces a variety of colors depending upon how the light hits. While blues often predominate, greens, yellows, and reds can also be observed in the same specimen. This is a form of refraction called labradorescence. The crossing lines are veins and small cracks in the mineral.
One of my favourite minerals.
Labradorite (Na,Ca)₁₋₂Si₃₋₂ O₈ is a feldspar mineral of the plagioclase series and is treasured for its remarkable play of colour, known as labradorescence or chatoyance.
The stone is composed in aggregate layers that refract light as iridescent flashes of peacock blue, gold, pale green, or coppery red.
The geological area for labradorite is Paul's Island near the town of Nain in Labrador, Canada. It has also been reported in Norway, Finland and various other locations worldwide, with notable distribution in Madagascar, China, Australia, Slovakia and the USA.
This specimen is from Madagascar.
Size: 85mm x 56mm x 18mm
What is Labradorescence?
Labradorescence is not a display of colours reflected from the surface of a specimen. Instead, light enters the stone, strikes a twinning surface within the stone, and reflects from it. The colour seen by the observer is the colour of light reflected from that twinning surface.
What is Chatoyance?
Chatoyance is an optical phenomenon in which a band of reflected light moves just beneath the surface of a cabochon-cut gemstone.
Photo usage and Copyright:
Medium-resolution photograph licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Terms (CC BY-NC-ND 4.0). For High-resolution Royalty Free (RF) licensing, contact me via my site: Contact.
Martin
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