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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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Thomsonite - CA
Jalgaon, district Maharashtra, India
A wonderful solid spherical Thomsonite ball (diameter 25mm) on volcanic rock from Jalgaon, district Maharashtra, India. This nice specimen was found in the year 2005. Dimensions: 90x45x40 mm. Weight: 0.140 kilogrammes.
35.00 euro
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Heulandite
Superb geode with lilac amethyst, on which crimson red stilbite crystals and a single clear white heulandite crystal. Origin: India, Poona, Lonavale. Dimensions: 90x90x65 mm. Weight: 0.553 kilogrammes.
46.00 euro
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Brown stilbite
Laurel Hill, Secausus, New Jersey, USA
Beautiful classic specimen. Lustrous, a bit silky, brown stilbite crystals. A part of the stilbite aggregates is covered with small white mirco-crystals. Dimensions: 80x70x25 mm. Weight: 0,118 kilogrammes.
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