|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Hampshire > Quartz var. Smoky Quartz (Dauphiné Law Twin)
|Quartz var. Smoky Quartz (Dauphiné Law Twin)
|Moat Mountain, west of North Conway, Carroll County, New Hampshire
|Lustrous highly transparent smoky quartz crystals on white albite and muscovite. The smoky quartz crystals are twinned following the Dauphiné Law of quartz twinning, with rare crystal faces and suture lines visible. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1970s
|For reference only
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