AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Brazil > Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face

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

   

Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face from São Geraldo do Baixio, Minas Gerais, Brazil

 
Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face from São Geraldo do Baixio, Minas Gerais, Brazil

Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face from São Geraldo do Baixio, Minas Gerais, Brazil

Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face from São Geraldo do Baixio, Minas Gerais, Brazil

DESCRIPTION:No. 63952
Mineral:Quartz var. Smoky Quartz (Dauphiné-law twins) with large S-face
Locality:São Geraldo do Baixio, Minas Gerais, Brazil
Description:Lustrous transparent light-smoky quartz crystals with distinct twin plane visible on the side and large S-faces {2111} on adjacent corners indicating the quartz is twinned following the Dauphiné Law of quartz twinning. Minor muscovite on sides. Collected ca. 1985
Overall Size:4.5x2.5x1.5 cm
Crystals:45 mm
Archived: For reference only

 

 

 

 

 

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