Your question is unclear. Topaz is a mineral.
It's carbonates
Tourmaline and many other gems like topaz form in small teardrop shaped formations called pegmatites.
Tourmaline and many other gems like topaz form in small teardrop shaped formations called pegmatites.
Hundreds of minerals are found in Brazil, from diamonds to topaz to quartz.
There are many minerals with hardness above 5.5 but the standard ones are feldspar,quartz, topaz, corundum and diamond.
they are both minerals and birthstones
Topaz, tetrahedrite, azurite, malachite :)
topaz has a hardness of 8 on the mohs hardness scale, quartz has a hardness of 7. topaz will be able to scratch quartz, but quartz can never scratch topaz.
Yes. With the exceptions of coral and pearl, all gemstones are minerals.
Minerals form as hot magma cools inside the crust, or as lava hardens on the surface. When these liquids cool to a solid state, they form crystals. When elements and compounds that are dissolved in water leave a solution, crystallization occurs.
I dont know, I have been seacrching Google myself!! :(
Ghundao Hill, north of Katlang, in Mardan. It's usually colorless to tan, occasionally pink, very rarely an intense pink-red-magenta color. This material formed in a metacarbonate, very like Brazilian imperial topaz (which it can closely resemble in crystal form) and very unlike the igneous material from elsewhere in Pakistan.