Nifontovite
Charcas, Charcas Municipality, San Luis PotosÃ, Mexico
1.71 carats
© Rarestone.com
Nifontovite forms transparent to translucent colourless to gray tabular crystals up to 6 cm long.
Nifontovite is a very rare gem found in just a few localities around the world. Crystals from Charcas, Mexico are transparent, colourless and relatively large.
Nifontovite 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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Nifontovite Gemstones by Size
This table shows distribution of Nifontovite 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:1.58 cts
Heaviest:3.06 cts
Average:2.16 cts
Total photos:5
Do you have a larger Nifontovite? Why not upload a photo?
| General Information | ||||||||||||||||||||||
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| Chemical Formula |
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| Physical Properties of Nifontovite | ||||||||||||||||||||||
| Mohs Hardness | 3.5 to 5, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Specific Gravity | 2.35 to 2.36, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Cleavage Quality | Poor, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Optical Properties of Nifontovite | ||||||||||||||||||||||
| Refractive Index | 1.573 to 1.585, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Optical Character | Biaxial/+, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Dispersion | Strong, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Colour | ||||||||||||||||||||||
| Colour (General) | Colorless to gray; colorless in thin section, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Transparency | Transparent,Translucent, Handbook of Mineralogy (2001) Semitransparent | |||||||||||||||||||||
| Lustre | Vitreous, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Fluorescence & other light emissions | ||||||||||||||||||||||
| Fluorescence (Long-Wave UV) | Fluoresces violet, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Crystallography of Nifontovite | ||||||||||||||||||||||
| Crystal System | Monoclinic, Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Habit | Tabular crystals, to 6 cm; granular., Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Geological Environment | ||||||||||||||||||||||
| Where found: | In a skarn formed by quartz diorite intruding limestone (Novofrolovskoye deposit, Russia); near gehlenite-spurrite skarn (Fuka, Japan)., Handbook of Mineralogy (2001) | |||||||||||||||||||||
| Further Information | ||||||||||||||||||||||
| Mineral information: | Nifontovite information at mindat.org | |||||||||||||||||||||
| Significant Gem Localities | ||||||||||||||||||||||
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