AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Hampshire > Quartz var. Smoky Quartz (Dauphiné-law twin) on Microcline |
DESCRIPTION: | No. 71683 |
Mineral: | Quartz var. Smoky Quartz (Dauphiné-law twin) on Microcline |
Locality: | Moat Mountain, west of North Conway, Carroll County, New Hampshire |
Description: | Lustrous transparent smoky quartz crystal on white microcline with muscovite mica on the rear faces. The smoky quartz has etched, well-defined {7181} faces on adjacent corners indicating it is twinned following the Dauphiné Law of quartz twinning. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1960s-70s |
Overall Size: | 5x3x2.5 cm |
Crystals: | 46 mm |
Archived: | For reference only |
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