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Pahasapaite Mineral Data
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General Pahasapaite Information
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 Chemical Formula: |
Li8(Ca,Li,K,Na)11Be24(PO4)24•38(H2O) |
| Composition: |
Molecular Weight = 3,532.65 gm |
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Potassium 1.33 % K 1.60 % K2O |
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Sodium 0.13 % Na 0.18 % Na2O |
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Lithium 2.28 % Li 4.91 % Li2O |
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Calcium 6.24 % Ca 8.73 % CaO |
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Beryllium 6.12 % Be 16.99 % BeO |
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Phosphorus 21.04 % P 48.22 % P2O5 |
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Hydrogen 2.17 % H 19.38 % H2O |
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Oxygen 60.69 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Li8Ca5.5Li3.6K1.2Na0.2Be24(PO4)24•38(H2O) |
| Environment: |
late-stage mineral in seams in fractured beryl crystals in a complex granite pegmatite. |
| IMA Status: |
Approved IMA 1987 |
| Locality: |
Tip Top mine, 8.5 km southwest of Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data. |
| Name Origin: |
From Pahasapa, the Lakota Sioux word for Black Hills, South Dakota, USA. |
| Name Pronunciation: |
Pahasapaite + Pronunciation  |
| Synonym: |
ICSD 71430 |
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PDF 41-1384 |
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