Spinel
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| Spinel-anorthite-phlogopite rock (Sakenite) |
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| Southern Madagascar |
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| Source: Thin section collection M.M. Raith |
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| Photos: MMR |
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Comments and references:
Polygonal spinel aggregate formed through replacement of corundum; anorthite altered by thomsonite along grain boundaries |
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| PPL |
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| +Pol |
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| Additional images |
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| Image comments |
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| Width of view |
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Pol orientation |
| 2 mm |
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W-E |
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Spinel |
Images
Mineral data |
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