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Shri Ashtapad Maha Tirth_
Rough Gemstones
Name: Rose Quartz
Color: Strong pink, pale pink Hardness: 7 Density: 2.65 Transparency: Transparent, Translucent Country: Brazil, Madagascar, India, Mozambique, Namibia, Sri Lanka and United States
SILICATE (Tectosilicate, Silica Group) á-SiO2 (Silicon oxide) Rose quartz is often cracled, usually a little turbid. Rose quartz is one of the most desirable varieties of quartz. The pink to rose red color is completely unique, unlike any other pink mineral species. Rose quartz is used as an ornamental stone and as a gemstone. It is also an alternate birthstone for the month of January
Name: Tiger's Eye
Color: Gold-yellow, gold-brown Hardness: 6 1/2 - 7 Density: 2.58 -2.64 Transparency: Opaque Country: South Africa, Australia, Burma, India, Namibia, United States
Typically display stripes, because included fibers are crooked or bent. It is sensitive to acids. Found together with hawk's eye in slabs of a few inches thickness.
Name: Calcite
Color: colorless, yellow, brown and various other color Hardness: 3 Density: 2.69 -2.71 Transparency: Transparent to Translucent Country: South Africa, Australia, Burma, India, Namibia, United States, Zambia, Germany
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NITRATES, CARBONATES, BORATES. CaCO3 (Calcium carbonate). Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite at 470°C, and vaterite is even less stable.
Ratna Mandir -
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