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| HELVITE | Mn2+4Be3[S|(SiO4)3] |
| Locality: Iron Mtn., Bartlett, NH | |
| Specimen Size: 2 mm field of view. Cluster of honey colored Helvite tetrahedron crystals | |
| Environment: Iron vein deposit in Conway granite | |
| Field collected: Scott Whittemore | |
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