Minerals and Metals in Ancient India v2.c43.s3.t11.8
Minerals and Metals in Ancient India v2.c43.s3.t11.8
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v2.c43.s3.t11.8
*lazurite* 3Na₂Al₂Si₂O₈, 2Na₂S (chief ingredient) alternatively (Ca, Na)₈(Al,Si)₁₂O₂₄ (S, SO₄, Cl)ₓ (polysulphide units) *haüynite* 3Na₂Al₂Si₂O₈, 2CaSO₄ *sodalite* 3Na₂Al₂Si₂O₈, 2NaCl