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
| 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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