Zincite
Round brilliant zincite
11.85 carats
© Rarestone.com
Although Zincite is known as a natural mineral (in particular, fine specimens have been found at the Franklin/Sterling Hill deposit in New Jersey), these are generally not gem quality.
Zincite 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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Zincite Gemstones by Size
This table shows distribution of Zincite 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:5.06 cts
Heaviest:19.14 cts
Average:13.94 cts
Total photos:7
Do you have a larger Zincite? Why not upload a photo?
| General Information | ||
|---|---|---|
| Varieties/Types: | 铜碲矿 - A synthetic zincite | |
| Chemical Formula |
| |
| Physical Properties of Zincite | ||
| Specific Gravity | 5.50 to 5.90, The Journal of Gemmology (1995) | |
| Tenacity | Brittle, Management Team (2012) | |
| Cleavage Quality | Perfect, Management Team (2012) | |
| Fracture | Conchoidal, Management Team (2012) | |
| Optical Properties of Zincite | ||
| Refractive Index | 1.80+, The Journal of Gemmology (1995) Over the limits of standard refractometer. | |
| Optical Character | Uniaxial, The Journal of Gemmology (1995) | |
| Pleochroism | Very weak, in two tones of body colour, The Journal of Gemmology (1995) | |
| Colour | ||
| Colour (General) | Medium-light yellow, medium orange, medium-dark reddish-orange, The Journal of Gemmology (1995) | |
| Colour (Chelsea Filter) | Yellow stone: no reaction (appears yellowish-green). Orange stone: weak pink. Reddish-orange stone: moderate red, The Journal of Gemmology (1995) | |
| Transparency | Transparent, The Journal of Gemmology (1995) | |
| Lustre | Subadamantine, The Journal of Gemmology (1995) | |
| Fluorescence & other light emissions | ||
| Fluorescence (General) | LW > SW; both universely propotional to depth of body colour, The Journal of Gemmology (1995) | |
| Fluorescence (Short Wave UV) | Inert to very weak to moderate, yellow to orange, The Journal of Gemmology (1995) | |
| Fluorescence (Long-Wave UV) | Very weak to moderate, yellow to yellow-orange, The Journal of Gemmology (1995) | |
| Crystallography of Zincite | ||
| Crystal System | Hexagonal, Management Team (2012) | |
| Habit | Usually massive, foliated; also compact granular, and in rounded irregular masses., Management Team (2012) | |
| Further Information | ||
| Mineral information: | Zincite information at mindat.org | |