AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Microcline (Baveno Law Twin)

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Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

 
Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

Microcline (Baveno Law Twin) from Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania

DESCRIPTION:No. 77202
Mineral:Microcline (Baveno Law Twin)
Locality:Brandywine Summit, Chadd's Ford, Delaware County, Pennsylvania
Description:Blocky tan-gray microcline crystal with remnants of quartz in the base. The microcline crystal was erroneously labeled as orthoclase, a common error of the period. The microcline crystal is twinned following the Baveno Law of feldspar twinning. Ex. Charles M. Noll collection #CN1079; ex. Marquette University; ex. David Crawford; ex. British Museum #16.3.5-24; ex. Wards Natural Science. Collected ca. 1890
Overall Size:8.5x5x4 cm
Crystals:85 mm
Archived: For reference only

 

 

 

 

 

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