Magnesioclinoholmquistite

General Information:
 Chemical Formula:
Li2(Mg,Fe++)3Al2Si8O22(OH)2
 Composition:
(Molecular Weight = 846.07 gm)
Lithium 1.64 % Li
Aluminum 6.38 % Al
Iron 19.80 % Fe
Silicon 26.56 % Si
Hydrogen 0.24 % H 
Oxygen 45.38 % O 
 Empirical Formula:
Li2Fe2+3Al2(Si8O22)(OH)2
 Environment:
Crystals in a pegmatite. Dimorphous with magnesioholmquistite, forms a series with clinohomquistite and ferroclinoholmquistite.
 IMA Status:
Approved IMA
 Locality:
Unspecifed locality in Siberia, Russia.
 Name Origin:
Named for its composition, monoclinic crystal structure, and relationship with holmsquisite.
Physical Properties:
 Cleavage:
[???] Good
 Color:
blue violet, gray, gray violet, or light blue.
 Density:
3.02
 Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., ,
 Hardness:
5-6 - Between Apatite and Orthoclase
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