Black Star Diopside, is from India, when Diopside is more iron rich and magnesium poor they are then almost black it shows a 4 rayed star when cut en cabochon.
K2 stone is very recent discovery in Pakistan’s very remote K2 mountains; it has Azurite and Granite minerals in it. It is also known as K2 Jasper, but it is not jasper, black is Biotite in it, and sometime we see green stains in it which is Malachite.
Garnet is the group of differently colored minerals with similar crystal structure and related chemical composition. They are following: pyrope, almandite, spessartite, hessonite Grossular, Andradite, Tsavorite, Uvarovite, Demantoid.
Carnelian is variety of chalcedony, it come in brownish to orange range of colors, the coloring agent is Iron oxide. Sometime heated to enhanced color, In India they are placed in the sun to change brown tints to red
Blue Star sapphire (Treated) with diffusion method. 1/3 of surface is being treated, color is natural, star is being created, by using the natural silk on the sapphire cab.
Ammonite is Fossilized shell of ammonites, which in turn are composed of primarily of Aragonite which is carbonate mineral Typically occurring in white seashell. Because of a lamellar structure, it reveals an iridescent opal-like play of colors.
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