AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Maine > Muscovite (pocket crystals) with Hyalite Opal

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

   

Muscovite (pocket crystals) with Hyalite Opal from Lord Hill Quarry, Stoneham, Oxford County, Maine

 
Muscovite (pocket crystals) with Hyalite Opal from Lord Hill Quarry, Stoneham, Oxford County, Maine

Muscovite (pocket crystals) with Hyalite Opal from Lord Hill Quarry, Stoneham, Oxford County, Maine

Photo below under shortwave ultraviolet illumination:
Muscovite (pocket crystals) with Hyalite Opal from Lord Hill Quarry, Stoneham, Oxford County, Maine

DESCRIPTION:No. 56502
Mineral:Muscovite (pocket crystals) with Hyalite Opal
Locality:Lord Hill Quarry, Stoneham, Oxford County, Maine
Description:V-shaped section of a pocket wall lined on the inner faces with platy hexagonal muscovite mica crystals and spots of hyalite opal that fluoresce bright green under UV illumination. Ex. Thomas A. Penney (1934-2019) collection #289, collected in the 1960s-70s.
Overall Size:11x11x7 cm
Crystals:1-80 mm
Archived: For reference only

 

 

 

 

 

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