(optics) A certain type of white or bluish light seen in a gemstone (usually adularia) as it is turned.
Adularescence
| Sci-Tech Dictionary: adularescence |
(′aj·ə·lə′res·əns)
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| Geological Glossary: Adularescence |
A bluish reflection coming from a definite plane in a mineral. Comes from the feldspar variety adularia and is best known in the gemstone “moonstone.”
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 | orthoclase |
| Adularescence |
| Gem (mineralogy and petrology) |
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Geological Glossary. Peterson Field Guide to Rocks and Minerals, by Frederick H. Pough. Copyright © 1998 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more |
