AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Hampshire > Quartz var. Smoky Quartz (Dauphiné Law Twins)

Quartz var. Smoky Quartz (Dauphiné Law Twins) from Moat Mountain, west of North Conway, Carroll County, New Hampshire

DESCRIPTION:	No. 64949
Mineral:	Quartz var. Smoky Quartz (Dauphiné Law Twins)
Locality:	Moat Mountain, west of North Conway, Carroll County, New Hampshire
Description:	Lustrous transparent smoky quartz crystals, with etched well-defined {7181} faces on adjacent corners indicating they are twinned following the Dauphiné Law of quartz twinning, plus very rare {201} faces on the termination-prism edges. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1960s-70s.
Overall Size:	4.3x3.5x2.5 cm
Crystals:	43 mm
Archived:	For reference only

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