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Mineral class 08: Silicates | |
The silicate minerals make up the largest and most important class of rock-forming minerals, constituting approximately 90 percent of the crust of the Earth. They are classified based on the structure of their silicate group which contain different ratios of silicon and oxygen.
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Blue kyanite crystals in a matrix of semi-transparent quartz
Minas Gerais, in the Southeast Region, Brazil
Large decorative cabinet size piece with has deep blue kyanite crystals in a matrix of semi-transparent quartz crystal; blades in a V-shape. Location: Minas Gerais, in the Southeast Region, Brazil. Measures approximately 210x120x70 mm and weighs approximately 2,000 kilogramme.
175.00 euro
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Epidote and Adularia with chlorite
Haramosh Mountains, Skardu District, Baltistan, Pakistan
This nice combo specimen features lustrous and translucent olive green crystals of epidote, up to 4 cm in length, together with crystals of adularia, with chlorite, up to 3 cm in length. Measures approximately 80x60x35 mm and weighs approximately 0,120 kilogramme.
38.00 euro
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Garnat, var. spessartine
China, Yunxiau Fujian Province,
Very attractive deep colored reddish-orange spessartine - associated with smoky quartz, small packages muscovite on microcline. Origin: China, Yunxiau Fujian Province. Dimensions: 150x130x45 mm. Weight: 0.670 kilogram.
65.00 euro
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Spodumene (green)
Very nice cluster green spodumene crystals with a litle muskovite. Origin: Afghanistan. Dimensions: 110x100x80 mm. Weight: 0.670 kilogrammes.
340.00 euro
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Beryl (var. Aquamarine)
China
Large piece Muskovite on which 20 - 30 nice blue aquamarine crystals. Origin: China. Dimensions: 160x90x40 mm. Weight: 0.535 kilogrammes.
SOLD
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Beryl (var. Aquamarine)
Afghanistan, Kunar-Tal
Museum piece with 3 crystal clusters and some clear solitary aquamarine crystals on muskovite. Dimensions: 200x100x65 mm. Weight 1.638 kilogramme.
600.00 euro
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Beryl (var. Morganite)
Afghanistan, Kunar-Tal
Beautiful coularful combination. Large quartz crystal transpierced with uncountable fine green tourmaline crystals. A large pink beryl crystal is locked up (var. morganite) in the quartz. Origin Afganistan, Kunar-Tal. Dimensions: 170x100x80 mm. Weight: 1.730 kilogramme.
520.00 euro
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Emerald-green dioptase
Omaue mine, Kaokoveld Plateau, Kunene regio, Namibië.
Dark emerald-green dioptase specimen, really gemmy and lustrous, beautifully contrasting the white quartz matrix. Location: Omaue mine, Kaokoveld Plateau, Kunene regio, Namibië. Measures approximately 90x60x55 mm and weighs approximately 0,290 kilogramme.
125.00 euro
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Emerald-green dioptase
Omaue mine, Kaokoveld Plateau, Kunene regio, Namibië.
Dark emerald-green dioptase specimen, really gemmy and lustrous, beautifully contrasting the white quartz matrix. Location: Omaue mine, Kaokoveld Plateau, Kunene regio, Namibië. Measures approximately 80x40x30 mm and weighs approximately 0,100 kilogramme.
115.00 euro
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Clinochlore (var. Kammererite)
Very nice piece with some deep purple kammererite crystals; kammererite is the chrome rich variety of the mineral clinochlore. It has been found in many places around the world but by far the best specimens come from Turkey.
This piece is from Turkey, the Kop Krom mine, Kop Daglari, Erzurum province. Dimensions: 50x35x30 mm. Weight: 0.075 kilogrammes.
SOLD
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