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- Title
Two unusual aquamarines.
- Authors
Koivula, John I.
- Abstract
The article presents the result of an examination of a 31.9-millimeter-long aquamarine from the Braldu Valley in Baltistan, Pakistan and a 52.17-millimeter-wide aquamarine from the Erongo Mountains in Namibia, which were submitted to the GIA Laboratory in Carlsbad, California. While the Pakistani beryl crystal specimen was characterized by its transparent termination and a cloudy lower portion with a tornado-like shape composed of veils of minute fluid inclusions, the Namibian specimen was composed of a cluster of transparent-to translucent greenish blue aquamarine crystals that were partially coated with a layer of clay.
- Subjects
CARLSBAD (Calif.); PAKISTAN; CALIFORNIA; GEMS &; precious stones; GEM &; precious stone inclusions; BERYL; CRYSTALS
- Publication
Gems & Gemology, 2008, Vol 44, Issue 3, p275
- ISSN
0016-626X
- Publication type
Article