| Reference Type | Journal (article/letter/editorial) |
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| Title | Sasaite, a new phosphate mineral from West Driefontein Cave, Transvaal, South Africa |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Martini, J. | Author |
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| Year | 1978 (September) | Volume | 42 |
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| Issue | 323 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_42/42-323-401.pdf+ |
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| DOI | doi:10.1180/minmag.1978.042.323.12Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 2942 | Long-form Identifier | mindat:1:5:2942:5 |
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| GUID | 0 |
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| Full Reference | Martini, J. (1978) Sasaite, a new phosphate mineral from West Driefontein Cave, Transvaal, South Africa. Mineralogical Magazine, 42 (323) 401-404 doi:10.1180/minmag.1978.042.323.12 |
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| Plain Text | Martini, J. (1978) Sasaite, a new phosphate mineral from West Driefontein Cave, Transvaal, South Africa. Mineralogical Magazine, 42 (323) 401-404 doi:10.1180/minmag.1978.042.323.12 |
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| In | (1978, September) Mineralogical Magazine Vol. 42 (323) Mineralogical Society |
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| Abstract/Notes | SummaryA new mineral, sasaite, occurs as white chalky nodules in the soil of a dolomitic cave and seems to be derived from the action of bat guano on clay minerals. Under the microscope it consists of an agglomeration of plates 10–20 µm on greatest dimension and with a rhombic shape. Its formula is (Al, Fe3+)14(PO411(OH)7SO4·83H2O and it is orthorhombic or quasi-orthorhombic. Preliminary crystallographic data based on an orthorhombic cell are a 21·50, b 30·04, c 92·06 Å, Z10, based on a calculated density of 1·747 (observed 1·75). The optical indices are α 1·465, β 1·473, γ 1·477 all ±0·001, and the principal vibration directions are parallel or quasi-parallel to the crystallographic axis. |
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