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| MAGNESIOHORNBLENDE | [Ca2][Mg4Al][(OH)2|AlSi7O22] |
| Locality: Soapstone Quarry, Richmond, NH | |
| Specimen Size: 3.7 cm specimen. Intergrowth of black-green magnesiohornblende blades. | |
| Environment: Contact metamorphic zone | |
| Field collected: Tom Mortimer | |
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