Alabama Mineral & Lapidary Society

The Alabama Mineral and Lapidary Society is a non-profit organization
for people interested in geology, mineralogy, paleontology and lapidary arts.

Photo Gallery - Minerals Photo Gallery
Minerals Photo Gallery
Photographed by Henry Barwood  
Iridescent anatase from the 3M Big Rock Quarry, Pulaski County, Arkansas. These unusual anatase crystals were discovered by Don Reems and Jim Musick in 2009 from a small area of pegmatite. The whitish material is clay and the matrix is feldspar. This anatase is enriched in Nb (up to 4%), is transparent internally and is zoned. Only a few specimens were found and all of them were iridescent. FOV is .4 X .5 mm. Imaged with a Canon 40D, 23 mm Nikon objective in a tube configuration with a 300mm Canon FD telephoto. Stacked using Combine Z software.

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