AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Microcline (Manebach-law twinned) with Muscovite

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Microcline (Manebach-law twinned) with Muscovite from Leiper's Quarry, Avondale, Delaware County, Pennsylvania

 
Microcline (Manebach-law twinned) with Muscovite from Leiper's Quarry, Avondale, Delaware County, Pennsylvania

Microcline (Manebach-law twinned) with Muscovite from Leiper's Quarry, Avondale, Delaware County, Pennsylvania

Microcline (Manebach-law twinned) with Muscovite from Leiper's Quarry, Avondale, Delaware County, Pennsylvania

DESCRIPTION:No. 52372
Mineral:Microcline (Manebach-law twinned) with Muscovite
Locality:Leiper's Quarry, Avondale, Delaware County, Pennsylvania
Description:Partial crystal of translucent brown microcline that is twinned following the Manebach Law of feldspar twinning. The twin plane is distinctly visible running through the center of the microcline crystal. The top rear of the termination is incomplete. Ex. John Geiges collection #934. Repaired
Overall Size:8x6x5 cm
Crystals:65 mm
Archived: For reference only

 

 

 

 

 

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