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Acuminite Mineral Data
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General Acuminite Information
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 Chemical Formula: |
SrAlF4(OH)•(H2O) |
| Composition: |
Molecular Weight = 225.62 gm |
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Strontium 38.84 % Sr 45.93 % SrO |
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Aluminum 11.96 % Al 22.60 % Al2O3 |
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Hydrogen 1.34 % H 11.98 % H2O |
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Oxygen 14.18 % O |
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Fluorine 33.68 % F 33.68 % F |
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- %
F -14.18 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
SrAlF4(OH)•(H2O) |
| Environment: |
In the Ivigtut cryolite deposit, southwestern Greenland. |
| IMA Status: |
Approved IMA 1987 |
| Locality: |
Greenland, Ivigtut Link to MinDat.org Location Data. |
| Name Origin: |
From the Latin acuminis, sharp point, for spear head, the characteristic shape of the crystals. |
| Name Pronunciation: |
Acuminite + Pronunciation  |
| Synonym: |
ICSD 33830 |
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PDF 48-1870 |
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