Characteristics

Origin of diamond Diamond is called, thanks to the translation from Arabic “hard”, it is the hardest mineral

Obsidian rock is formed from molten lava, which cools very quickly, thereby turning into

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Skarn deposits Skarn deposits are formed in zones of contact between igneous rocks and their host sedimentary rocks

Category Oxides (minerals) Name in English. Magnetite Formula FeFe2O4 Group Spinel Group Color Black Color

Graphite is a mineral from the class of native elements, one of the allotropic modifications of carbon. Common in

Emerald is a mineral, a transparent variety of beryl, colored with an admixture of Cr3+ or vanadium oxide with an admixture

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A delicate mineral the color of the spring sky, Angelite captivates with its sophistication and purity. This fragile stone carries

What do we know about shungite by W. Schumann in the book “Precious and semi-precious stones”