Data for some African columbite-tantalite specimens
Twenty-three specimens from equatorial and southern Africa are investigated, primarily for X-ray powder data. Unit cell dimensions and volume, ranging from 414.7 Å3 (columbite) to 424.1 Å3 (manganotantalite) are given. A correlation between the unit cell volume and the 100 • Mn/(Mn + Fe) ratio is in...
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| Format: | Article |
| Language: | English |
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Geological Society of Finland
1975-12-01
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| Series: | Bulletin of the Geological Society of Finland |
| Online Access: | http://www.geologinenseura.fi/bulletin/Volume47/sgs_bt_047_pages_117_125.pdf |