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- Title
Inclusions in andradite from Namibia.
- Authors
Fritz, Eric A.; Koivula, John I.; Laurs, Brendan M.; Gunter, Mickey; Johnston, Christopher L.
- Abstract
The article focuses on needle-like inclusions in samples of garnet variants andradites and demantoids found in Namibia. The curved fibers and very fine needles found in the demantoid samples were not seen in andradites with colors ranging from brownish orange to brown-red. Some of the samples were tested using Raman analysis and found that the surface-reaching needles in the samples were actually empty holes or hollow tubes. Powder X-ray diffraction (XRD) analysis did not show rutile or other minerals in the samples.
- Subjects
NAMIBIA; GEM &; precious stone inclusions; GARNET; HOLES; RAMAN spectroscopy; X-ray diffraction
- Publication
Gems & Gemology, 2007, Vol 43, Issue 4, p370
- ISSN
0016-626X
- Publication type
Article