7- Silicate Minerals a Rock forming minerals inte many groups according to their

Question

7- Silicate Minerals a Rock forming minerals inte many groups according to their chemical composition such as Olivine b. Rock forming minerals into many groups according to their chemical composition such as diamond c Rock forming minerals into many groups according to their chemical composition sach as magnetite 4 Rock forming minerals into many groups according to their chemical composition such as Halite s- The color of a mineral i 11 depends on the purities present in darkoolred minerals and color is usually a specific rather than general depends on the purities present in dark-colored minerals and color is sually a peneral rather than specific It depends on the impurities present in light-colored minerals and color is usualy a general rather than spocific d It depends on the impurities present in dark-colored minerals and color is usually a general rather than specific Tridescence is a. a play of colors characteristic of certain minerals quartz, for instance, is colorless b, a play of colors characteristic of certain minerals Orthoclase, for instance, is colorless c a play of colors characteristic of certain minerals Augite, for instance, is colorless d. a play of colors characteristic of certain minerals Augite, for instance, is colorless 0-The Lustre is the a. described according to the degree of non-brightness minerals b. described according to the degree of brightness from splendent to dull ( c. described according to the degree of non-brightness from splendent to dull d described according to the degree of brightness from splendent to dull Metallic like polished metal (galena, magnetite) Metallic like non-polished metal (galena, magnetite (Metallic like nonpolished metal (galena, magnetite

Explanation / Answer

7. Silicate materials are rock forming minerals into many groups according to their chemical composition such as Olivine.

Silicate materials include quartz, feldspar, mica, amphibole pyroxene and olivine.

8. The color of a mineral is: It depends on the impurities present in dark colored minerals and color is usually a general rather than specific.

9. Iridescence is a play of colors characteristic of certain minerals quartz, for instance, is colorless.

10. The lustre is described according to the degree of brightness from splendent to dull (Metallic like nonpolished metal, Galena, Magnetite)

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