Calcioaravaipaite

General Information: Chemical Formula:PbCa2Al(F,OH)9 Composition:(Molecular Weight = 483.33 gm)Calcium 16.58 % CaAluminum 5.58 % AlHydrogen 0.21 % H Lead 42.87 % PbOxygen 3.31 % O Fluorine 31.45 % F  Empirical Formula: PbCa2AlF8OH Environment:In a small epithermal lead-copper-silver deposit in a silicified breccia. IMA Status:Approved IMA (Dana # Added) Locality:The Grand Reef mine in Laurel Canyon, about 6 km northeast of Klondyke, Aravaipa mining district, Graham County, Arizona. USA. Name Origin:For the relationshop with aravaipaitePhysical Properties: Cleavage:[100] Good Color:colorless or milk white. Density:4.85 Diaphaniety:Transparent Habits:Crystalline - Fine - Occurs as well-formed fine sized crystals., Massive - Uniformly indistinguishable crystals forming large masses., Hardness:2.5 - Finger Nail Luster:Vitreous (Glassy) Streak:whiteMore details...