Rhodizite
Madagascar
0.80 carats
© Rarestone.com
Rhodizite is found as well-formed transparent to translucent colourless to white, sometomes pink, red, yellow-green, yellow, grey crystals.
Rhodizite has a high lustre and hardness, but it is very rare and crystals are usually too small to facet. Faceted stones exceeding 1 carat are uncommon.
Rhodizite Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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Rhodizite Gemstones by Size
This table shows distribution of Rhodizite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:0.34 cts
Heaviest:0.80 cts
Average:0.48 cts
Total photos:5
Do you have a larger Rhodizite? Why not upload a photo?
| General Information | ||||||||||||||||||
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| Chemical Formula |
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| Rhodizite Treatments | ||||||||||||||||||
| Irradiation of colorless stone produces intense yellow-(greenish): irradiated and natural color fade on long exposure to sunlight - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 3 | ||||||||||||||||||
| Physical Properties of Rhodizite | ||||||||||||||||||
| Mohs Hardness | 8 to 8.5, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Specific Gravity | 3.34 to 3.44, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Cleavage Quality | Distinct, Gemstones (2009) | |||||||||||||||||
| Fracture | Conchoidal, Gemstones (2009) | |||||||||||||||||
| Optical Properties of Rhodizite | ||||||||||||||||||
| Refractive Index | 1.684 to 1.694, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Optical Character | Isotropic, Blue Chart Gem Identification (2010) Anomalous double refractionMore from other references | |||||||||||||||||
| Birefringence | Anomalous, Gems, Sixth Edition (2006) Frequently displays anomalous birefringence | |||||||||||||||||
| Dispersion | Nil, Gemstones (2009) | |||||||||||||||||
| Colour | ||||||||||||||||||
| Colour (General) | Colourless, pink, red, yellow-green, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Transparency | Transparent, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Lustre | Adamantine,Vitreous, Gemstones (2009) | |||||||||||||||||
| Fluorescence & other light emissions | ||||||||||||||||||
| Fluorescence (General) | Yellowish to greenish, Gemmological Tables (2004) | |||||||||||||||||
| Fluorescence (Short Wave UV) | Weak to moderate yellow-green, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Fluorescence (X-RAY) | Some specimens give a strong greenish or yellowish response with some phosphorescence, Gems, Sixth Edition (2006) | |||||||||||||||||
| Crystallography of Rhodizite | ||||||||||||||||||
| Crystal System | Isometric, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Habit | Dodecahedra and tetrahedra, Gems, Sixth Edition (2006) More from other references | |||||||||||||||||
| Geological Environment | ||||||||||||||||||
| Where found: | Rhodizite occurs as a late-stage accessory mineral in alkali-rich granite pegmatites., Gems, Sixth Edition (2006) | |||||||||||||||||
| Inclusions in Rhodizite | ||||||||||||||||||
| "Fingerprints", thin needles, growth zoning - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 3 | ||||||||||||||||||
| Further Information | ||||||||||||||||||
| Mineral information: | Rhodizite information at mindat.org | |||||||||||||||||
| Significant Gem Localities | ||||||||||||||||||
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