| Reference Type | Journal (article/letter/editorial) |
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| Title | A ferric iron equivalent of hematolite from Sterling Hill, New Jersey and Långban, Sweden |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Dunn, Pete J. | Author |
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| Peacor, Donald R. | Author |
| Year | 1983 (September) | Volume | 47 |
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| Issue | 344 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_47/47-344-381.pdf+ |
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| DOI | doi:10.1180/minmag.1983.047.344.15Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 3534 | Long-form Identifier | mindat:1:5:3534:1 |
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| GUID | 0 |
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| Full Reference | Dunn, Pete J., Peacor, Donald R. (1983) A ferric iron equivalent of hematolite from Sterling Hill, New Jersey and Långban, Sweden. Mineralogical Magazine, 47 (344) 381-385 doi:10.1180/minmag.1983.047.344.15 |
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| Plain Text | Dunn, Pete J., Peacor, Donald R. (1983) A ferric iron equivalent of hematolite from Sterling Hill, New Jersey and Långban, Sweden. Mineralogical Magazine, 47 (344) 381-385 doi:10.1180/minmag.1983.047.344.15 |
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| In | (1983, September) Mineralogical Magazine Vol. 47 (344) Mineralogical Society |
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| Abstract/Notes | An unnamed Fe3+ analogue of hematolite is described from Sterling Hill, New Jersey and Långban, Sweden. Eight microprobe analyses are in good agreement with ratios derived from a prior analysis which yielded: Al2O3 0.24, Fe2O3 10.85, MgO 10.61, MnO 41.76, As2O3 6.65, As2O5 15.29, H2O 13.23 (rem. = 1.63), sum = 100.26 %. Single-crystal study indicated that this compound is hexagonal with a = 8.28 Å, but the value of c could not be well-defined due to complex polytypism giving rise to diffuse and poorly resolved reflections along c*. In one case, a value of c = 72.69 Å was dominant. All values that could be determined were multiples of approximately 12 Å. The strongest lines in the X-ray powder diffraction pattern are: 2.400(100), 1.563(100), 6.09(80), 3.42(50), and 5.13(50). This compound is dark red and occurs as platy hexagonal crystals in clusters associated with a wide variety of species in varied assemblages. It remains unnamed because of the ambiguity arising from polytypism. |
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