|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Montana > Quartz var. Smoky Quartz (Dauphiné Law Twin)
|Quartz var. Smoky Quartz (Dauphiné Law Twin)
|Silver Bow County, Montana
|Lustrous transparent smoky quartz crystal with no matrix attached. The smoky quartz crystal is twinned following the Dauphine Law of quartz twinning, with rare crystal faces and suture lines visible on the prism faces. Collected ca. 1985
|For reference only
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