Zincite
| Refractive Index : 2.030 – 2.013 |
| Optical Characteristic : DR, Uniaxial negative |
| Specific Gravity : 5.70 – 5.43 |
| Formula : (Zn,Mn)O |
| Crystal System : Hexagonal |
| Variety/Species : All |
| Species/Group : Zincite |
| Birefringence : 0.016 |
| Dispersion : 0.127 |
| Hardness : 4 to 4.5 |
| Toughness : Poor |
| Ultrasonic : Never |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : 2 colors |
| Strength : Weak to moderate |
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| Pleochroism Colors : Weak to moderate:Deep red/yellow |
| Heat : Sensitive |
| Acids : Sensitive |
| Light : Stable |
| Polish Luster : Submetalic |
| Fracture : Conchoidal |
| Fracture Luster : |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : |
| Enhancements : None |
| Cleavage : Perfect in 1 direction, but difficult |
| Color Range : yellow, brownish yellow, red, orange, white Yellowish, reddish, orangy, whitish |
| Transparency : Transparent to Opaque |
| Phenomena : None |
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| Separations : Zincite from- |
| Identifying Characteristics and information Yellowish orange streak. Cut stones are extremely rare. Zincite is red oxide of zinc. |
| Spectral Data Not diagnostic |
| Trade Names and Misnomers Red Oxide of zinc Zincite |
Tags: red oxide, red zinc oxide, zincite
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