Vanadium in trace amounts is probably responsible for the minty green color of chrysoberyls like this one.
Identification | |
Type: | Natural |
Species: | Chrysoberyl |
Variety: | Chrysoberyl |
Origin: | Tunduru, Ruvuma, Ruvuma Region, Tanzania |
Hardness: | 8.5 |
Density: | 3.75 |
RI-1: | 1.741 |
RI-2: | 1.76 |
Enhancements | |
Variety of work: | Faceted |
Designation: | A (Not currently known to be enhanced) |
Color | |
Color light source: | Cool daylight |
Color description: | styG 4/3 (medium light strongly yellowish green) |
Phenomena: | Pleochroism Strong (55%-59%) |
Clarity | |
Clarity type: | Slightly included (Type I) |
Transparency: | Transparent |
Cut | |
Shape: | Octagon |
Cut style: | Step |
Symmetry: | Exceptional |
Brilliance: | Fair |
Polish: | Exceptional |
Size | |
Width: | 6.50 mm |
Length: | 10.50 mm |
Depth: | 3.20 mm |
Weight: | 2.56 cts |