| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Hampshire > Arfvedsonite and Microcline |
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| DESCRIPTION: | No. 59480 |
| Mineral: | Arfvedsonite and Microcline |
| Locality: | Hurricane Mountain, east of Intervale, Carroll County, New Hampshire |
| Description: | Elongated black prismatic arfvedsonite crystals to 55 mm enclosed in blocky white microcline crystals to 25 mm. The arfvedsonite crystal are segments of larger crystals and are not terminated, typical for this locality where terminated crystals are rare. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1960s-70s. |
| Overall Size: | 12x5.5x3.5 cm |
| Crystals: | 6-55 mm |
| Archived: | For reference only |
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