Goshenite
Brazil
4.28 carats
© Rarestone.com
Goshenite is a colorless variety of
beryl, named after locality in Goshen, Massachusetts (USA).
Goshenite is used as imitation for
diamond and
emerald by applying silver or green metal foil to the cut stone.
The gem value of goshenite is relatively low.
General Information |
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A variety or type of: | Beryl |
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Chemical Formula | Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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Photos of natural/un-cut material from mindat.org |
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Goshenite Treatments |
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Goshenite can be colored yellow, green, pink, blue and in intermediate colors by irradiating it with high-energy particles. The resulting color depends on the content of Ca, Sc, Ti, V, Fe, and Co impurities. - Ibragimova, E. M. et al.(2009). "Correlations between admixtures and color centers created upon irradiation of natural beryl crystals". |
Physical Properties of Goshenite |
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Mohs Hardness | 7.5 to 8Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Specific Gravity | 2.60 to 2.90Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Cleavage Quality | IndistinctArthur Thomas, Gemstones (2009) |
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Fracture | ConchoidalArthur Thomas, Gemstones (2009) |
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Optical Properties of Goshenite |
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Refractive Index | 1.562 to 1.615Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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Optical Character | Uniaxial/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Birefringence | 0.003 to 0.010Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Dispersion | 0.014Michael O’Donoghue, Gems, Sixth Edition (2006) |
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Colour |
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Colour (General) | ColourlessGemdat.org, Management Team (2012) |
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Transparency | Transparent,TranslucentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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Lustre | VitreousArthur Thomas, Gemstones (2009) |
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Crystallography of Goshenite |
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Crystal System | HexagonalHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Habit | PrismaticArthur Thomas, Gemstones (2009) |
Further Information |
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Mineral information: | Goshenite information at mindat.org |
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Significant Gem Localities |
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| Myanmar | |
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| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
- Dattaw-taung (Dattaw hill)
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
- Pein-Pyit (Painpyit; Pyan Pyit)
| Ted Themelis (2008) Gems & mines of Mogok | | Pakistan | |
| E.Ya.Kievlenko, Geology of gems, 2003, p. 110 | | Sri Lanka | |
| Econ Geol (1981) 76:733-738 | | USA | |
- Mesa Grande Mining District
| Fisher, J. 2002. Gem and rare-element pegmatites of southern California. Mineralogical Record, Volume 33, Number 5: pages 390-396, photographs. |
| Osborn, P. (2005) Personal communication between Phillip Osborn of Hemet and Scott L. Ritchie of Temecula, California; description of beryl discovery on southwestern most Oceanview lode exposure; March. |
| mindat.org |
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