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Ruby specimen 318.80Ctsweight, 51mm x 21mm x 30mm dimension stone A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum. Other varieties of gem-quality corundum are called sapphires. Category: Oxide mineral variety Formula: aluminium oxide withchromium, Al2O3:Cr Crystal system: Trigonal Crystal class: Hexagonal Mohs scale: hardness9.0 Luster: Subadamantine, vitreous, pearly […]

Beauty Of nature Creation, Ceylon Natural Black Spinel With special earth creation ” Trigon Δ “   Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl₂O₄ in the cubic crystal system. Its name comes from Latin “spina” Spinel helps to release stress and worry whilst replenishing depleted energy.