Most gem enstatites have indices in the range 1 663 1 673. The brown and green gems from tanzania are enstatites as are the brownish green stones from sri lanka. Instagram photos for mineralsnet. A gemstone is usually defined as a highly attractive and valuable piece of cut and polished mineral that is used in jewelry or other decorations. Azurite is a vivid blue copper mineral that can be cut into beautiful cabochon gems.
Green and brown gems from india and brazil tend to be in the bronzite composition range. This site has been providing detailed information and photos of hundreds of mineral and gemstone since 1997 and is one of the leading education resources on minerals and gemstones. Some important gemstones are not here yet. The mineral and gemstone kingdom is a free informational and educational guide to rocks minerals gemstones and jewelry. Gem beryl beryl the mineral of emerald aquamarine morganite heliodor goshenite and more.
In general mineral particles are small having. Gemstones have their own science as well called gemology which is a branch of mineralogy. In general mineral particles are small having. Green and brown gems from india and brazil tend to be in the bronzite composition range. Most gem enstatites have indices in the range 1 663 1 673.