| General Information |
|---|
| A variety or type of: | Beryl |
|---|
| Other Names/Trade Names: | |
|---|
| Physical Properties of Red Beryl |
|---|
| Mohs Hardness | 7.5 to 8Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
|---|
| Specific Gravity | 2.63 to 2.72Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
|---|
| Optical Properties of Red Beryl |
|---|
| Refractive Index | 1.561 to 1.576Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references |
|---|
| Optical Character | Uniaxial/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
|---|
| Birefringence | 0.004 to 0.006Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references |
|---|
| Colour |
|---|
| Colour (General) | Red, violet-redUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
|---|
| Causes of Colour | Red, Mn3+ in octahedral coordination.W. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) |
|---|
| Fluorescence & other light emissions |
|---|
| Fluorescence (General) | InertHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
|---|
| Crystallography of Red Beryl |
|---|
| Crystal System | HexagonalHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
|---|
| Inclusions in Red Beryl |
|---|
| "Fingerprints" made by numerous fluid inclusions - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 6 |
| Further Information |
|---|
| Mineral information: | Red Beryl information at mindat.org |
|---|
| Significant Gem Localities |
|---|
| | | USA | | |
| http://www.agmc.info/nm_mineral_locations.htm#Paramount%20Canyon,%20Sierra%20Co.,%20New%20Mexico | |
| Northrup, Minerals of New Mexico, 3rd Rev. Ed., 1996 | |
| Am Min 19:82-88; Bowling, R. (2011) Topaz from Utsh's Maynard Mine Extra Lapis English 14:22-25 | |
| Van King | |
| Christian Bracke Collection | |
| J. Holfert, W. Mroch, J. Fuller (1996) A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah (Topaz Mountain) Vol I HM Publishing 103pp | |
| A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah- John Holfert et al, 1996 |
|
|