| Reference Type | Journal (article/letter/editorial) |
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| Title | Gudmundite from Base Metal Sulphide Deposit of Askot, Pithoragarh District, (U. P.) |
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| Journal | Journal of the Geological Society of India |
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| Authors | Seetharam, R. | Author |
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| Year | 1981 (May) | Volume | 22 |
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| Page(s) | 216-219 | Issue | 5 |
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| Publisher | Geological Society of India | Place | Bangaluru, India |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 17627498 | Long-form Identifier | mindat:1:5:17627498:8 |
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| GUID | 0 |
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| Full Reference | Seetharam, R. (1981) Gudmundite from Base Metal Sulphide Deposit of Askot, Pithoragarh District, (U. P.). Journal of the Geological Society of India, 22 (5). 216-219 |
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| Plain Text | Seetharam, R. (1981) Gudmundite from Base Metal Sulphide Deposit of Askot, Pithoragarh District, (U. P.). Journal of the Geological Society of India, 22 (5). 216-219 |
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| In | (1981, May) Journal of the Geological Society of India Vol. 22 (5). Geological Society of India |
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| Abstract/Notes | Gudmundite occurs as a common mineral constituent in the polymetallic ores of Askot. Three distinct modes of formation of gudmundite have been observed: (a) as a product of decomposition of tetrahedrite, (b) as a substitution product in cubanite and (c) as a reaction rim around breithauptite. The breakdown of tetrahedrite to chalcopyrite-gudmundite intergrowth signifies the retrograde metamorphism of this high temperature ore body. The eutectoid intergrowth between cubanite and gudmundite has resulted from a late stage hypogene replacement by addition of antimony. |
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