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Aug
Sinhalite is a borate mineral with formula MgAl(BO4). This Orthorhombic Crystal hardness is 6 1⁄2 – 7 according to the Mohs Hardness scale. This gemstone was first found in Sri Lanka in 1952. It was named from Sinhala – the Sanskrit name for Sri Lanka. This is also Biaxial (-) gemstone with Specific Gravity 3.475 […]