Eglestonite

General Information: Chemical Formula:Hg6Cl3O(OH) (?) Composition:(Molecular Weight = 1,342.90 gm)Mercury 89.62 % HgHydrogen 0.08 % H Chlorine 7.92 % ClOxygen 2.38 % O  Empirical Formula: Hg6Cl3O(OH)Physical Properties: Cleavage:None Color:brown, brownish yellow, yellow, dark brown, or orange. Density:8.3 Diaphaniety:Transparent to translucent Hardness:2-3 - Gypsum-Calcite Luminescence:Non-fluorescent. Luster:Adamantine - Resinous Streak:light yellowMore details...