Franklinite
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| Franklinite | |
|---|---|
 Franklinite (black) with Zincite (red) | |
| General | |
| Category |
Oxide minerals Spinel group Spinel structural group |
| Formula (repeating unit) | ZnFe2O4 |
| Strunz classification | 04.BB.05 |
| Identification | |
| Color | black |
| Crystal system | cubic |
| Fracture | irregular/uneven, conchoidal |
| Mohs scale hardness | 5½-6 |
| Luster | metallic |
| Streak | reddish brown to black |
| Diaphaneity | opaque |
| Specific gravity | 5.07 - 5.22 |
Franklinite is a mineral with formula ZnFe2O4. It is associated with the Franklin Mine and Sterling Hill Mines in New Jersey.
See also
- Spinel
- Classification of minerals
- List of minerals
References
External links
Media related to Franklinite at Wikimedia Commons
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