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Franklinite is an oxide mineral belonging to the normal spinel subgroup's iron (Fe) series, with the formula ZnFe3+2O4.
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spinel iron may ferric minerals zincite mineral commonly found new jersey oxide formula red black octahedral crystal references classification magnetite
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Franklinite | Category | Oxide minerals Spinel group Spinel structural group | 1.00 | infobox |
| Franklinite | Cleavage | None; indistinct octahedral parting in four directions | 1.00 | infobox |
| Franklinite | Color | black | 1.00 | infobox |
| Franklinite | Crystal class | Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m) | 1.00 | infobox |
| Franklinite | Crystal habit | octahedral | 1.00 | infobox |
| Franklinite | Crystal system | Cubic | 1.00 | infobox |
| Franklinite | Diaphaneity | opaque | 1.00 | infobox |
| Franklinite | Formula | ZnFe2O4 | 1.00 | infobox |
| Franklinite | Fracture | irregular/uneven, conchoidal | 1.00 | infobox |
| Franklinite | IMA symbol | Frk | 1.00 | infobox |
| Franklinite | Luster | metallic, often dull | 1.00 | infobox |
| Franklinite | Mohs scale hardness | 5.5–6 | 1.00 | infobox |
| Franklinite | Other characteristics | magnetic | 1.00 | infobox |
| Franklinite | Solubility | HCl soluble | 1.00 | infobox |
| Franklinite | Space group | Fd3m | 1.00 | infobox |
| Franklinite | Specific gravity | 5.07–5.22 | 1.00 | infobox |
| Franklinite | Streak | reddish brown to black | 1.00 | infobox |
| Franklinite | Strunz classification | 4.BB.05 | 1.00 | infobox |
| Franklinite | Tenacity | Brittle | 1.00 | infobox |
| Franklinite | Ultraviolet fluorescence | None | 1.00 | infobox |
| Franklinite | is a | oxide mineral belonging to the normal spinel subgroup's iron | 0.90 | text |
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