Chemical Formula:
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Ca(Mn,Na,Li)6Fe++Al2(PO4)6(F,OH)2 |
Composition:
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Molecular Weight = 1007.43 g |
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Hydrogen |
0.01 % |
H |
0.09 % |
H2O |
0.00 % |
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Lithium |
0.48 % |
Li |
1.04 % |
Li2O |
0.00 % |
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Oxygen |
38.27 % |
O |
0.00 % |
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0.00 % |
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Fluorine |
3.77 % |
F |
3.77 % |
F |
0.00 % |
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Sodium |
2.51 % |
Na |
3.38 % |
Na2O |
0.00 % |
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Aluminum |
5.09 % |
Al |
9.61 % |
Al2O3 |
0.00 % |
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Phosphorus |
18.45 % |
P |
42.27 % |
P2O5 |
0.00 % |
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Calcium |
3.98 % |
Ca |
5.57 % |
CaO |
0.00 % |
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Manganese |
16.91 % |
Mn |
21.83 % |
MnO |
0.00 % |
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Iron |
10.53 % |
Fe |
7.84 % |
FeO |
6.34 % |
Fe2O3
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100.00 % |
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95.40 % |
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6.34 % |
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Empirical Formula:
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CaMn2+3.1Na1.1Fe2+1.1Li0.7Fe3+0.8Al1.9 (PO4)6F2(OH)0.1 |
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Environment:
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Accessory mineral in complex granite pegmatites |
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Locality:
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Riverton Lode (Everly mine), near Harney City, 3 km east of Keystone, Penninton County, South Dakota, USA.. Link to
MinDat.org
Location Data.
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Name Origin:
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From the Greek for "enigma", as the chemical composition was originally puzzling |
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Synonym:
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