AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Brazil > Quartz (etched to show Dauphiné-law twinning)

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Quartz (etched to show Dauphiné-law twinning) from Minas Gerais, Brazil

 
Quartz (etched to show Dauphiné-law twinning) from Minas Gerais, Brazil

Quartz (etched to show Dauphiné-law twinning) from Minas Gerais, Brazil

DESCRIPTION:No. 50869
Mineral:Quartz (etched to show Dauphiné-law twinning)
Locality:Minas Gerais, Brazil
Description:Thinly sawn section of a colorless quartz crystal that was etched to show the internal zones of crystals rotated 180° following the Dauphine Law of quartz twinning. Ex. Peter B. Nalle (1923-2010) collection #158b
Overall Size:6x4.5x0.2 cm
Crystals:
Archived: For reference only

 

 

 

 

 

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