Lannonite

General Information: Chemical Formula:HCa4Mg2Al4(SO4)8F9·32(H2O) Composition:(Molecular Weight = 1,833.84 gm)Calcium 8.74 % CaMagnesium 2.65 % MgAluminum 5.89 % AlHydrogen 3.57 % H Sulfur 13.99 % S Oxygen 55.84 % O Fluorine 9.32 % F  Empirical Formula: HCa4Mg2Al4(SO4)8F9·32(H2O) Environment:Post mining mineral in deposits containing oxidizable sufides and fluorine bearing minerals. IMA Status:Approved IMA 1979 Locality:Lone Pine mine, Catron County, New Mexico. Name Origin:Named after Dan Lannon, who staked important claims at the locality in the late 1800's.Physical Properties: Color:white. Density:2.22 Habits:Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., Nodular - Tuberose forms having irregular protuberances over the surface., Hardness:2 - Gypsum Luster:Earthy (Dull) Streak:whiteMore details...