General Information:
Chemical Formula:Li2(Mg,Fe++)3Al2Si8O22(OH)2
Composition:(Molecular Weight = 846.07 gm)Lithium 1.64 %
LiAluminum 6.38 %
AlIron 19.80 %
FeSilicon 26.56 %
SiHydrogen 0.24 %
H Oxygen 45.38 %
O Empirical Formula: Li2Fe2+3Al2(Si8O22)(OH)2
IMA Status:Approved IMA
Name Origin:The name reflects its composition and relationship to holmquistite..
Physical Properties: Cleavage:[???] Good
Color:violet or gray blue.
Hardness:5-6 - Between Apatite and Orthoclase
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