Reference Type | Journal (article/letter/editorial) |
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Title | A natural ferrous substituted saléeite from Arcu su Linnarbu, Capoterra, Cagliari, Sardinia |
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Journal | Mineralogical Magazine | ISSN | 0026-461X |
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Authors | Vochten, R. | Author |
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Van Springel, K. | Author |
Year | 1996 (August) | Volume | 60 |
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Issue | 401 |
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Publisher | Mineralogical Society |
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Download URL | https://rruff.info/doclib/MinMag/Volume_60/60-401-647.pdf+ |
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DOI | doi:10.1180/minmag.1996.060.401.10Search in ResearchGate |
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| Generate Citation Formats |
Mindat Ref. ID | 73 | Long-form Identifier | mindat:1:5:73:8 |
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GUID | 0 |
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Full Reference | Vochten, R., Van Springel, K. (1996) A natural ferrous substituted saléeite from Arcu su Linnarbu, Capoterra, Cagliari, Sardinia. Mineralogical Magazine, 60 (401) 647-651 doi:10.1180/minmag.1996.060.401.10 |
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Plain Text | Vochten, R., Van Springel, K. (1996) A natural ferrous substituted saléeite from Arcu su Linnarbu, Capoterra, Cagliari, Sardinia. Mineralogical Magazine, 60 (401) 647-651 doi:10.1180/minmag.1996.060.401.10 |
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In | (1996, August) Mineralogical Magazine Vol. 60 (401) Mineralogical Society |
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Abstract/Notes | AbstractFerrous substituted saléeite is a new variety of saléeite from Arcu su Linnarbu, Sardinia. It is tetragonal with a = 6.982(2) c = 19.660(2) Å, Z = 2; the ideal formula is (Mg,Fe2+)(UO2)2(PO4)2·4H2O. The strongest lines in the X-ray powder diffraction pattern are: 3.473(100)(114), 4.95(50)(110), 4.91(40)(004), 4.443(40)(112), 2.200(30)(118), 2.193(30)(303) and 2.178(30)(009). The mineral is light-yellow in colour and is dull fluorescent. The measured density is 3.242 g/cm3 and Z = 2. There is a prominent (001) cleavage. Refractive indices are : α = 1.572(2) β = 1.577(2) γ = 1.581(2) and 2V = 48°(2). The pleochroism is very weak and the elongation is positive parallel to Y. The mineral occurs as subparallel crystal aggregates with a quadratic outline. |
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