Lannonite

General Information:
 Chemical Formula:
HCa4Mg2Al4(SO4)8F9·32(H2O)
 Composition:
(Molecular Weight = 1,833.84 gm)
Calcium 8.74 % Ca
Magnesium 2.65 % Mg
Aluminum 5.89 % Al
Hydrogen 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:
white
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