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23 Nov

Calcite Formula: CaCO3 Colour: White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc. Lustre: Vitreous, Sub-Vitreous, Resinous, W...

04 Nov

Click to download article Ruby deposit from Afghanistan

04 Apr

Named in 1854 by Augustin Alexis Damour in honor of Alfred Louis Olivier Le Grand Des Cloizeaux , Professor of Mineralogy, University o...

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