AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Hampshire > Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - 
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Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

 
Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline from Moat Mountain, west of North Conway, Carroll County, New Hampshire

DESCRIPTION:No. 63177
Mineral:Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline
Locality:Moat Mountain, west of North Conway, Carroll County, New Hampshire
Description:Lustrous transparent medium-smoky quartz crystals to 24 mm on brown microcline crystals to 4 mm. The smoky quartz crystals are twinned following the Dauphiné Law of quartz twinning, as indicated by S-faces face {2111} on adjacent comers of each crystal. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1960s-70s.
Overall Size:7.5x6.5x5 cm
Crystals:2-24 mm
Archived: For reference only

 

 

 

 

 

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