Is franklinite oxide an ore?

Franklinite with zincite, assorted rare stones
Size: about 3,1x3x2,1 cm
Minerals: Franklinite, zincite
Field: Sterling Hill, New Jersey, USA
Samples in stock may differ slightly in size and appearance from those shown in the photo. Free shipping Applies to delivery by Russian Post within the Russian Federation from 3000 ₽
Exchange and return 14 days

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Argentina, Campo del Cielo meteorite
Argentina, Chaco, Doce de Octubre Department, Gran Chaco, Campo del Cielo meteorite USA, New York FRANKLINIT – mineral, zinc and iron oxide (Fe 3+). Syngony: Cubic
Composition (formula): ZnFe 3+ ₂O₄
Color: Iron black, brown, red
Trait Color: Reddish brown to black
Transparency: Opaque
Cleavage: Very imperfect (absent)
Fracture: Uneven, conchoidal
Luster: Metallic, semi-metallic, dull
Hardness: 5,5-6
Density (specific gravity), g/cm3: 4,87; 5,05-5,22 – measured; 5,163 – calculated
Brittleness: Brittle Special properties: From strongly to weakly magnetic, probably depending on the Fe 2+ admixture (slightly magnetic according to Betekhtin A.G., 2007, p. 325; diamagnetic according to mindat.org). Not fluorescent. Doesn’t melt under a blowpipe. It dissolves very easily in hot hydrochloric acid, without boiling, but with a slight smell of bleach. Morphology Coarse-grained to confluent masses, the crystals are usually octahedral in shape. Twins according to the spinel law. Origin The franklinite mineral is a product of high-temperature contact metamorphism of marine carbonate sediments rich in iron, zinc, and mantzan. Application
One of the zinc ore minerals
Classification

• Spinel supergroup
  • Oxyspinel group
    • Spinel subgroup
      • Franklinite mineral
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