AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Microcline (Carlsbad-law twinned)

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

   

Microcline (Carlsbad-law twinned) from Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado

 
Microcline (Carlsbad-law twinned) from Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado

Microcline (Carlsbad-law twinned) from Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado

Microcline (Carlsbad-law twinned) from Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado

Microcline (Carlsbad-law twinned) from Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado

DESCRIPTION:No. 61066
Mineral:Microcline (Carlsbad-law twinned)
Locality:Maroon Bells, Elk Mountains, southwest of Aspen, Pitkin County and Gunnison County, Colorado
Description:Two interpenetrant microcline crystals that are twinned following the Carlsbad Law of feldspar twinning where the microcline crystals share a common plane of atoms running along the C-axis. These crystals were phenocrysts that weathered out of granite. Ex. Thomas A. Penney (1934-2019) collection, collected in the 1970s by his son.
Overall Size:4.5x4x2 cm
Crystals:45 mm
Archived: For reference only

 

 

 

 

 

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