View allAll Photos Tagged Quartz
Quartz showing his faces
Courtesy of Ivan Jimenez Boone
Image Details
Instrument used: MLA
Magnification: 1600x
Voltage: 25kV
Spot: 7.3
Working Distance: 10.0
Detector: BSE
Quartz, Sphalerite
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Department, Peru
10 x 8 cm
Gold in Quartz. American Mine. Alma Mining District. Near Alma, Park Co., Colo. (Collection of the Colorado School of Mines Geology Museum. Golden, Colo.)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4.
The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates).
Quartz (silicon dioxide/silica - SiO2) is the most common mineral in the Earth's crust. It is composed of the two most abundant elements in the crust - oxygen and silicon. It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture. Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.
The quartz seen here is an unbroken crystal.
General
Category: Silicate mineral
Chemical formula: SiO2 + (Traces of Al13)
Strunz classification: 04.DA.05
Dana classification: 75.01.03.01
Crystal system: α-quartz: trigonal trapezohedral class 3 2; β-quartz: hexagonal 622
Space group: Trigonal 32
Unit cella = 4.9133 Å, c = 5.4053 Å; Z=3
Identification
Colour: Brown to grey, opaque
Crystal habit: 6-sided prism ending in 6-sided pyramid (typical), drusy, fine-grained to microcrystalline, massive
Twinning: Common Dauphine law, Brazil law and Japan law
Cleavage: {0110} Indistinct
Fracture: Conchoidal
Tenacity: Brittle
Mohs scale hardness: 7 – lower in impure varieties (defining mineral)
Lustre: Vitreous – waxy to dull when massive
Streak: White
Diaphaneity: Transparent to nearly opaque
Specific gravity: 2.65; variable 2.59–2.63 in impure varieties
Optical properties: Uniaxial (+)
Refractive index: nω = 1.543–1.545
nε = 1.552–1.554
Birefringence: +0.009 (B-G interval)
Pleochroism: weak, from red-brown to green-brown
Melting point: 1670 °C (β tridymite) 1713 °C (β cristobalite)
Solubility: Insoluble at STP; 1 ppmmass at 400 °C and 500 lb/in2 to 2600 ppmmass at 500 °C and 1500 lb/in2
Other characteristics: lattice: hexagonal, Piezoelectric, may be triboluminescent, chiral (hence optically active if not racemic)
North of Cove Bay, making the most of a rare fine day.
Long exposure using an ND32 filter.
Here you can see the rock strata (the white layers being quartz, I guess) - the whole landscape has been tipped on its side. Impressive forces at work, even if they're incredibly slow!
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4.
The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates).
Quartz (silicon dioxide/silica - SiO2) is the most common mineral in the Earth's crust. It is composed of the two most abundant elements in the crust - oxygen and silicon. It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture. Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.
The quartz seen here is a broken specimen - no obvious crystal faces are present.
From the local rockyard comes this 5" wide specimen of common milky quartz. When ground against another piece of quartz, orange light is produced from triboluminescence.
The orange 630nm emission is attributed to electronic excitation of the non-bridging oxygen hole centers which is created when the crystalline structure of the quartz is broken.
See: mpalffy.lci.kent.edu/Optics/Presentations%202012/Tribolum...
Contains:
Quartz (non FL >UVabc)
Shown in triboluminescent state while being rubbed against another piece of quartz.
Key:
WL = White light (halogen + LED)
FL = Fluoresces
PHOS = Phosporescent
UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)
'>' = "stimulated by:", '!' = "bright", '~' = "dim"
Obtained from Highland Rocks and Gems' Rockyard, Burns OR, USA.
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Quartz, Japanese Law Twin
Pampa Blanca Mine
Inca Dept.
Peru
The fine druse, likely a metallic oxide like manganese oxide, highlights the face of the Japan Law Twin (flattened, twinned quartz crystal) and provides added interest to the piece.
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4.
The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates).
Quartz (silicon dioxide/silica - SiO2) is the most common mineral in the Earth's crust. It is composed of the two most abundant elements in the crust - oxygen and silicon. It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture. Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.
The quartz seen here is a broken specimen - no obvious crystal faces are present.
Small lake at the col between Quartz and Bessequartz. Sometimes known as one of the Blethen Pots. Quartz Lake would be a better name.
Mike Creighton is to blame. He got me playing around with Mac OS Quartz Composer and I have gotta say... its got some serious power under the hood. Its no Processing, mind you, but nothing beats its ability to impress with ease. A bit like Bryce 3D in a way. You all remember how amazing it was to render a crystal sphere in a land locked lake in the middle of a mountain range. This is kinda like that.
I spent about 2 hours with it today and managed to make this rather nice screensaver (email me if you want a copy... Mac OS tiger only) that uses webcam input to texturize a cube, a background, and a couple hundred particles.
Oh, and if anyone is wondering, it runs at fullscreen (1440x900) with webcam input at around 25 to 30 fps.
Quartz Milky White Striated Rock Crystal Cluster from an Arkansas Estate Rockhound Gemstone and Mineral Geo Collection Magnet Cove OOAK
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4.
The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates).
Quartz (silicon dioxide/silica - SiO2) is the most common mineral in the Earth's crust. It is composed of the two most abundant elements in the crust - oxygen and silicon. It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture. Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.
The quartz seen here is an unbroken crystal.
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4.
The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates).
Quartz (silicon dioxide/silica - SiO2) is the most common mineral in the Earth's crust. It is composed of the two most abundant elements in the crust - oxygen and silicon. It has a glassy, nonmetallic luster, is commonly clearish to whitish to grayish in color, has a white streak, is quite hard (H≡7), forms hexagonal crystals, has no cleavage, and has conchoidal fracture. Quartz can be any color: clear, white, gray, black, brown, pink, red, purple, blue, green, orange, etc.
The quartz seen here is a broken specimen - no obvious crystal faces are present.
Stunning natural quartz with an inclusion that resembles a plant. This is known as dendrite quartz. The plant like formation is an oxide of manganese that has formed in a hardly seen tenuous internal cleavage. These cleavages are due to internal tension inside the rock. It is not a clearly visible fissure. The manganese oxide has anciently penetrated in liquid state in the micro veins also known by the name of crystal foil. The bluish, opalized quartz color is due to the presence of tenuous fibers of actinolite and the yellow inclusion is known as cacoxenite. Cacoxenite is an oxide of iron. The rough crystal that originated this gemstone was found in the Brazilian State of Bahia and polished in São Paulo. A gemstone like this is able to attract more attention than an expensive diamond (brilliant) mainly when wearing an elegant woman in a sophisticated place. It measures 24 x 20 x 9 millimeters and weights 36 carats (6.2 grams)
Quartz Carpet is a slip-resistant natural stone floor that combines a unique, foot-massaging finish with natural quartz granules in a clear low resin finish for an uncluttered, sophisticated look that can be found in some of the most luxurious residences and bespoken commercial projects throughout the world.
Seamless when finished, a Quartz Carpet floor in installed on site and can accommodate any contour in the surfaces, leaving you with a clean, modern look that adds gracious beauty to your home.
Made out of millions of stones, polished by nature our floors are compatible with radiant heat and are ideal for every room in your home. With the same maintenance as a regular carpet, quartz carpet is the result of over 30 years of product development in Europe, having developed a unique coating system for quartz granules that ensure uniform color, UV stability and a color range with over 1,000 color options.
Benefits:
Anti-slip texture
Infinite color range and combinations
Stain resistant
25 + year projected life cycle
Easy to Maintain
Naturally beautiful
Totally seamless
{503} 830.0207
Sweet Surrender Quartz Mine near Washita, Arkansas
Here are the directions from their website:
FROM MT. IDA TAKE HWY 27 NORTH (THRU WASHITA) TO HORSESHOE BEND ROAD. HORSESHOE BEND ROAD IS 1/2 MILE PAST WASHITA ON THE RIGHT. GO 1/2 MILE DOWN HORSESHOE BEND ROAD TO THE FIRST MAIL BOX ON THE RIGHT.(FLOYD IRONS) TURN RIGHT ON THE FOREST SERVICE ROAD AND FOLLOW THE ROAD TO THE TOP OF THE HILL.
Quartz Carpet is a slip-resistant natural stone floor that combines a unique, foot-massaging finish with natural quartz granules in a clear low resin finish for an uncluttered, sophisticated look that can be found in some of the most luxurious residences and bespoken commercial projects throughout the world.
Seamless when finished, a Quartz Carpet floor in installed on site and can accommodate any contour in the surfaces, leaving you with a clean, modern look that adds gracious beauty to your home.
Made out of millions of stones, polished by nature our floors are compatible with radiant heat and are ideal for every room in your home. With the same maintenance as a regular carpet, quartz carpet is the result of over 30 years of product development in Europe, having developed a unique coating system for quartz granules that ensure uniform color, UV stability and a color range with over 1,000 color options.
Benefits:
Anti-slip texture
Infinite color range and combinations
Stain resistant
25 + year projected life cycle
Easy to Maintain
Naturally beautiful
Totally seamless
{503} 830.0207
Quartz var. Smoky. The mineral is silicon dioxide. M.T. Pit No. 1. Thompson Peak. Near Janesville, Plumas Co., Calif.
A Beauitiful stone garage constructed out of quartz with a stain glass window and gable. It was constructed by Clemons S. Goodness in 1914 on his parent's and later brother's property. Clemons was a navy veteran of the Spanish-American War and ran a store in town called Goodness's until his death in 1935
Quartz Carpet is a slip-resistant natural stone floor that combines a unique, foot-massaging finish with natural quartz granules in a clear low resin finish for an uncluttered, sophisticated look that can be found in some of the most luxurious residences and bespoken commercial projects throughout the world.
Seamless when finished, a Quartz Carpet floor in installed on site and can accommodate any contour in the surfaces, leaving you with a clean, modern look that adds gracious beauty to your home.
Made out of millions of stones, polished by nature our floors are compatible with radiant heat and are ideal for every room in your home. With the same maintenance as a regular carpet, quartz carpet is the result of over 30 years of product development in Europe, having developed a unique coating system for quartz granules that ensure uniform color, UV stability and a color range with over 1,000 color options.
Benefits:
Anti-slip texture
Infinite color range and combinations
Stain resistant
25 + year projected life cycle
Easy to Maintain
Naturally beautiful
Totally seamless
{503} 830.0207
Side view of crystal showing the vertical seed plate.
A view from the right side (down the "C" axis) is shown in:
www.flickr.com/photos/usageology/25180878896/in/photostream/
The maximum growth is along the "C" axis. This view, perpendicular to the "C" axis represents the slower growth direction. Here the growth rate is about 0.02 mm/day.
Quartz Carpet is a slip-resistant natural stone floor that combines a unique, foot-massaging finish with natural quartz granules in a clear low resin finish for an uncluttered, sophisticated look that can be found in some of the most luxurious residences and bespoken commercial projects throughout the world.
Seamless when finished, a Quartz Carpet floor in installed on site and can accommodate any contour in the surfaces, leaving you with a clean, modern look that adds gracious beauty to your home.
Made out of millions of stones, polished by nature our floors are compatible with radiant heat and are ideal for every room in your home. With the same maintenance as a regular carpet, quartz carpet is the result of over 30 years of product development in Europe, having developed a unique coating system for quartz granules that ensure uniform color, UV stability and a color range with over 1,000 color options.
Benefits:
Anti-slip texture
Infinite color range and combinations
Stain resistant
25 + year projected life cycle
Easy to Maintain
Naturally beautiful
Totally seamless
{503} 830.0207
A closeup of the Dal'negorsk quartz crystal, highlighting the odd striations and their effect on its crystal form
Stratigraphy: Emmaville Volvanics
Location: Glen Eden, New South Wales
Tectonics:
Age:
Notes: Quartz crystals in breccia in Emmaville Volcanics. Some Molybdenite ore present
Quartz Carpet is a slip-resistant natural stone floor that combines a unique, foot-massaging finish with natural quartz granules in a clear low resin finish for an uncluttered, sophisticated look that can be found in some of the most luxurious residences and bespoken commercial projects throughout the world.
Seamless when finished, a Quartz Carpet floor in installed on site and can accommodate any contour in the surfaces, leaving you with a clean, modern look that adds gracious beauty to your home.
Made out of millions of stones, polished by nature our floors are compatible with radiant heat and are ideal for every room in your home. With the same maintenance as a regular carpet, quartz carpet is the result of over 30 years of product development in Europe, having developed a unique coating system for quartz granules that ensure uniform color, UV stability and a color range with over 1,000 color options.
Benefits:
Anti-slip texture
Infinite color range and combinations
Stain resistant
25 + year projected life cycle
Easy to Maintain
Naturally beautiful
Totally seamless
{503} 830.0207