| Reference Type | Journal (article/letter/editorial) |
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| Title | Caratiite, a potassium, new sulphate-chloride of copper and from the lavas of the 1869 Vesuvius eruption |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Clark, A. M. | Author |
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| Fejer, E. E. | Author |
| Couper, A. G. | Author |
| Year | 1984 (December) | Volume | 48 |
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| Issue | 349 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_48/48-349-537.pdf+ |
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| DOI | doi:10.1180/minmag.1984.048.349.09Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3669 | Long-form Identifier | mindat:1:5:3669:0 |
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| GUID | 0 |
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| Full Reference | Clark, A. M., Fejer, E. E., Couper, A. G. (1984) Caratiite, a potassium, new sulphate-chloride of copper and from the lavas of the 1869 Vesuvius eruption. Mineralogical Magazine, 48 (349) 537-539 doi:10.1180/minmag.1984.048.349.09 |
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| Plain Text | Clark, A. M., Fejer, E. E., Couper, A. G. (1984) Caratiite, a potassium, new sulphate-chloride of copper and from the lavas of the 1869 Vesuvius eruption. Mineralogical Magazine, 48 (349) 537-539 doi:10.1180/minmag.1984.048.349.09 |
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| In | (1984, December) Mineralogical Magazine Vol. 48 (349) Mineralogical Society |
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| Abstract/Notes | AbstractCaratiite is a sulphate-chloride of potassium and copper with ideal formula K4Cu4O2(SO4)4MeCl (where Me = Na and/or Cu); it formed as fine green acicular crystals in lava of the 1869 eruption of Mt. Vesuvius, Naples, Italy. Caratiite is tetragonal, space group I4; a 13.60(2), c 4.98(1) Å, Z = 2. The strongest lines of the powder pattern are [d Å, I, hkl]: 9.61 100 (110); 6.80 80 (200); 4.296 60 (310); 3.015 100b (420,321); 2.747 70 (411); 2.673 60 (510); 2.478 60 (002); 2.388 70 (431,501); 2.281 60 (600). The mineral is uniaxial positive, ω 1.598, ɛ 1.711; it does not fluoresce under either short- or long-wavelength ultra-violet light. The specific gravity is 3.0 (meas.) and 3.22 (calc.). |
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