The silicate subgroups of cyclosilicates and inosilicates include beryl, tourmaline, jadeite, and nephrite. Learn to identify these minerals.
18 Minute Read
Cyclosilicates and inosilicates are two subclasses of silicate minerals. They include numerous mineral groups and important mineral species. The cyclosilicates most familiar to gemologists are beryls and the tourmaline supergroup. Inosilicates are subdivided into single-chain silicates, which includes the pyroxene supergroup, and double-chain silicates, which includes the amphibole minerals. The gem material gemologists call jade actually includes both pyroxene (jadeite) and amphibole (nephrite) members.
Cyclosilicate units form by joining three, four, or six SiO4 tetrahedrons into closed rings.
Benitoite (BaTi[Si3O9]), the rare state gem of California, is an example of a
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Cyclosilicates and inosilicates are two subclasses of silicate minerals. They include numerous mineral groups and important mineral species. The cyclosilicates most familiar to gemologists are beryls and the tourmaline supergroup. Inosilicates are subdivided into single-chain silicates, which includes the pyroxene supergroup, and double-chain silicates, which includes the amphibole minerals. The gem material gemologists call jade actually includes both pyroxene (jadeite) and amphibole (nephrite) members.
…Cyclosilicate units form by joining three, four, or six SiO4 tetrahedrons into closed rings.
Benitoite (BaTi[Si3O9]), the rare state gem of California, is an example of a
The silicate subgroups of cyclosilicates and inosilicates include beryl, tourmaline, jadeite, and nephrite. Learn to identify these minerals.
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