| Locality type: | Village |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Age information |
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| Maximum recorded age: | 500 ± 12 Ma |
| Minimum recorded age: | 500 ± 12 Ma |
| Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
|---|
| 1 | 500 ± 12 Ma | Miaolingian | - | Rb/Sr |
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| Sample references: | |
| Comments: | In gneiss |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Ambindandrakemba, Tranomaro, Amboasary Sud District, Anosy, Madagascar |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1220296 |
| Long-form Identifier: | 1:3:1220296:6 |
| GUID (UUID V4): | e79f479c-784a-4224-9ee2-ba59f2cb2ae1 |
| Nearest other occurrences of Biotite |
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| 3.7km (2.3 miles) | ⓘOsumilite occurrence, Tranomaro, Amboasary Sud District, Anosy, Madagascar |
| 21.1km (13.1 miles) | ⓘOsumilite occurrence 1, Mahaly, Amboasary Sud District, Anosy, Madagascar |
| 41.6km (25.8 miles) | ⓘManangotry (Manangotra), Isaka-Ivondro, Taolagnaro District, Anosy, Madagascar |
| 71.1km (44.2 miles) | ⓘCap Andrahomana, Andranobory, Taolagnaro District, Anosy, Madagascar |
| 77.1km (47.9 miles) | ⓘAmpasimena, Ampasimena, Taolagnaro District, Anosy, Madagascar |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | The belts of Eastern Africa, extending from Madagascar to southern Ethiopia, include the principal graphite...Eastern•tjerica(II) betweenEthiopiaand Moqambique, continuingin Madagascar. Rising betweenthe basinsand the sea,the •ttlantic...further north,with the principal,Hartley, gold district (28) in an irregularly shaped,150 mile long roof-pendant...Tshamakaterraces,the zoned, North Lugulu placer district. Most of the world's tantalum is locatedon the...beendistinguished in the southern,or Kilo (56)district: (a) Tsi-Labo, (b) Sindani-Alosiand (c) Pokwo-Yedi |  | | Report (issue) | | The Natural History Museum of Milan and its Madagascar Collection The Museo Civico di Storia Naturale... the museum began paleontologic fieldwork in Madagascar (upper Permian fauna and Jurassic and Cretaceous...fieldwork in Madagascar in 1996 in collaboration with other institu tions in Madagascar, Italy, and the...Pezzotta has spent a total of twenty nine months in Madagascar making geological-mineralogical surveys. In collaboration...both classic and new minerals and gemstones from Madagascar opened at the Natural History Museum in Milan |  | | Report (issue) | | LIBERIA LIBYA LIECHTENSTEIN LITHUANIA LUXEMBOURG MADAGASCAR MALAWI MALAYSIA MALI MALTA MARSHALL ISLANDS MAURITANIA...partial melting, such as pegmatites (Bancroft district and Charlebois Lake, Canada); (b) Disseminations...Zaire); Jachymov (former Czechoslovakia); Limousin district (France)); (ii) Deposits associated with ‘old’...(Proterozoic quartz-pebble conglomerates) (Blind River district (Canada); Witwatersrand Basin (South Africa));...mineralization (e.g. deposits of the Lagoa Real district, Brazil [42]) or (b) remobilization by supergene |  | | Journal (article/letter/editorial) | | (continued) Mineral Chemical composition Line Biotite Birnessite Bischofite Bismite Bismuth native Bismuthinite...no hypersthene. Lamprophyre mainly composed of biotite or phlogopite and melilite. May also contain olivine...mafic minerals such as pyroxene, hornblende or biotite. Matrix consists of the same minerals as the phenocrysts...typical rock-forming mineral besides microcline, biotite, calcite, zircon, aegirite, pyrochlore and apatite...Accessory and alteration minerals include hornblende, biotite, chlorite, and calcite. This diabasic texture is | | | Journal (article/letter/editorial) | | (continued) Mineral Chemical composition Line Biotite Birnessite Bischofite Bismite Bismuth native Bismuthinite...no hypersthene. Lamprophyre mainly composed of biotite or phlogopite and melilite. May also contain olivine...mafic minerals such as pyroxene, hornblende or biotite. Matrix consists of the same minerals as the phenocrysts...typical rock-forming mineral besides microcline, biotite, calcite, zircon, aegirite, pyrochlore and apatite...Accessory and alteration minerals include hornblende, biotite, chlorite, and calcite. This diabasic texture is |
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