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

Quartz var. Amethyst-Smoky Quartz (Dauphiné Law Twins) from Black Cap Mountain, east of North Conway, Carroll County, New Hampshire

DESCRIPTION:	No. 64778
Mineral:	Quartz var. Amethyst-Smoky Quartz (Dauphiné Law Twins)
Locality:	Black Cap Mountain, east of North Conway, Carroll County, New Hampshire
Description:	Four transparent purple amethyst partial crystals on an earlier generation of smoky quartz in parallel orientation. The quartz crystals have silky etched luster on the faces that reveal the quartz is twinned following the Dauphiné Law. Ex. Thomas A. Penney (1934-2019) collection #367, collected in the 1960s-70s. Restored
Overall Size:	9.5x5.5x4 cm
Crystals:	30-60 mm
Archived:	For reference only

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