| Locality type: | Island |
| Classification |
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| Species: | Feldspar Group var: Perthite |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Perthite data |
| Locality Data: | Click here to view Nchisi Island (Chilwa Island; Shirwa Island), Zomba, Southern Region, Malawi |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1317594 |
| Long-form Identifier: | 1:3:1317594:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Perthite |
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| 32.2km (20.0 miles) | ⓘMongolowe-Chaone-Chikala Complexes, Machinga, Southern Region, Malawi |
| 32.9km (20.5 miles) | ⓘMount Malosa, Zomba, Southern Region, Malawi |
| 43.1km (26.8 miles) | ⓘMachemba Mountain, Phalombe, Southern Region, Malawi |
| 47.6km (29.6 miles) | ⓘJunguni Hill, Machinga, Southern Region, Malawi |
| 53.1km (33.0 miles) | ⓘMichese Intrusion, Phalombe, Southern Region, Malawi |
| 68.8km (42.8 miles) | ⓘMlanje Massif, Mulanje, Southern Region, Malawi |
| 86.2km (53.6 miles) | ⓘTumbine Intrusion, Milange District, Zambezia Province, Mozambique |
| 95.4km (59.3 miles) | ⓘNsengwa Hill, Neno, Southern Region, Malawi |
| References |
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Eby, G.N., Roden-Tice, M., Krueger, H.L., Ewing, W., Faxon, E.H., Woolley, A.R. (1995) Geochronology and cooling history of the northern part of the Chilwa Alkaline Province, Malawi. Journal of African Earth Sciences, 20 (3) 275-288 doi:10.1016/0899-5362(95)00054-w Dowman, E., Wall, F., Treloar, P. J., Rankin, A. H., & Corkhill, C. (2017). Rare-earth mobility as a result of multiple phases of fluid activity in fenite around the Chilwa Island Carbonatite, Malawi. Mineralogical Magazine, 81(6), 1367-1395. |
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