Danburite
Formula: CaB2Si2O8 Colour: Pale yellow, yellowish-brown, colourless Lustre: Vitreous, Greasy Hardness: 7 – 7½ Specific Gravity: 2.93 – 3.02 Crystal System: Orthorhombic
PH: 0411609193
PH: 0411609193
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