View allAll Photos Tagged Quartz
Hubnerite & Quartz, Pasto Bueno, Ancash, Peru.
Seen in "Terra Mineralia", one of the largest collections of minerals in the world.
Fossil wood (quartz-permineralized fossil wood)
Plants are multicellular, photosynthetic eucaryotes. The oldest known land plant body fossils are Silurian in age. Fossil root traces of land plants are known back in the Ordovician. The Devonian was the key time interval during which land plants flourished and Earth experienced its first “greening” of the land. The earliest land plants were small and simple and probably remained close to bodies of water. By the Late Devonian, land plants had evolved large, tree-sized bodies and the first-ever forests appeared.
The fossil shown above is "petrified wood", which is a horrible term for what is technically called permineralization. Biogenic materials such as wood or bone have a fair amount of small-scale porosity. After burial, the porosity of wood or bone can get partially or completely filled up with minerals as groundwater or diagenetic fluids percolate through. The end result is a harder, denser material that retains the original three-dimensionality (or close to it). The wood or bone has become “petrified”. Well, no - it’s become permineralized. Not surprisingly, the most common permineralization mineral is quartz (SiO2). Sometimes, fossil wood and bone have been permineralized with radioactive minerals such as black uraninite (UO2) or yellowish carnotite (K2(UO2)2(VO4)2·3H2O). Recently, fossil bones permineralized with cinnabar have been identified (García-Alix et al., 2013, Lethaia 46: 1-6).
Quartz var. Agate. Specimen is agatized coral. Key West, Monroe Co., Florida. (Collection of the Mines Museum of Earth Science, Golden, Colo.)
Quartz pseudomorph after Anhydrite. Ridgeway Mine. Maggie Gulch area. South Silverton District. San Juan Co., Colo. (Collection of the Mines Museum of Earth Science. 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 5900 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.
The primary bead is Rose Quartz with a Sterling Silver bail and with Rose Quartz and Lilac Stone beads.
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
Le quartz prase, est une variété macro cristalline de quartz de couleur verte, différente de la variété microcristalline la chrysoprase. La couleur est liée à des inclusions d’amphibole.
Le quartz "star" (Etoiles d' hollandite) facilite le raccordement et
la communication avec d'autres mondes et royaumes plus élevés. C'est
une excellente pierre pour la méditation. Il apporte un sens d'unité
et de perfection.
Traduisez par : active et augmente l'activité de la glande pinéale et de la glande pituitaire. C'est un
compensateur émotif. Il stimule des fonctions de cerveau et amplifie
des formes de pensée. Son étendue spectrale dans toutes les gammes d'énergie permet d'activer tous les
niveaux de conscience. Dissipe la négativité dans le champ aurique et
environnemental. Reçoit, active, stocke, transmet et
amplifie l'énergie. Une excellente pierre pour la méditation.
Augmente la communication inter-dimensionnelle. Favorise la
communication avec vos guides (plus élevés) dans l'art d’être soi et branché (spirituellement parlant).
This small quartz geode half contains many dark needle-like crystals of an unidentified mineral that are coated in a crust of tiny quartz crystals. The cut face has been sanded and polished.
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 with inclusions of pyrite from the Huaron Mine in Peru. This mine produces some of the most spectacular specimens of pyrite, sphalerite, galena, quartz, and the like that you will ever seen. There is similar stuff that comes from Romania but it is getting to be pretty rare from there.
Cavities in quartz caused by the dissolution of the zeolite mineral laumontite around which the quartz crystals grew. Arkaroola, northern Flinders Range, South Australia.
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.
Premio Gabriel Barcia Marquez. miercoles 30 de septiembre en Plaza Mayor, Medellín, Colombia. Quartz: El periodismo que piensa en el tiempo del lector. Coloquio con Gideon Lichfield (Estados Unidos) en conversación con Jean-François Fogel (Francia). Realizado el miércoles 30 de septiembre en Plaza Mayor, Medellín, Colombia.Foto: David Estrada Larrañeta /FNPI
Large enhydro quartz crystal with two very distinct cavities where water bubbles can be seen with the naked eye. Video shows them very clearly. http://www.youtube.com/watch?v=-fJBG1dg0Fs. Water and gas have been enshrowded in this crystal for 124 million years. Pagoda shape near the termination. An incredible piece from the Hunan province of China. Available for purchase for $995.00 + shipping. Paypal and major credit cards accepted.
Gold on Quartz. North Star Mine. Grass Valley District. Nevada Co., Calif. (Collection of the National Mining Hall of Fame and Museum. Leadville, Colo.)
Quartz
Chevron-like amethyst crusts mark former serfaces of calcite
Ametista do Sul, Rio Grande do Sul
Brazil
Locality: Manacara, West Sulawesi, Indonesia
From the collection of the Natural History Museum of Los Angeles
NHMLA
Quartz with Petroleum inclusion, LED backlight.
Extension tubes KENKO 56mm + Nikkor 18-55 VR
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Quarzo con gocce di petrolio inglobate al suo interno, retroilluminato con un LED
Tubi d'estensione KENKO 56mm + Nikkor 18-55 VR