description Franklinite Overview
Franklinite is a black, opaque zinc, manganese, and iron oxide mineral belonging to the spinel group. Its chemical composition is commonly represented by the formula (Zn,Mn,Fe)Fe2O4, although the proportions of the elements can vary. The mineral is strongly associated with the Franklin and Sterling Hill deposits in New Jersey, where it occurs with minerals such as willemite and calcite in a district known for fluorescent specimens.
help Franklinite FAQ
How good is Franklinite?
Franklinite scores 5.61/10 (Mediocre) on Lunoo, making it rated in the Gemstone category. Franklin locality and fluorescence context interest collectors; opaque ore-like appearance limits gemstone appeal.
What are the best alternatives to Franklinite?
See our alternatives page for Franklinite for a ranked list with scores. Top alternatives include: Cassiterite, Galaxite, Andradite Garnet.
How does Franklinite compare to Cassiterite?
See our detailed comparison of Franklinite vs Cassiterite with scores, features, and an AI-powered verdict.
Is Franklinite worth it in 2026?
With a score of 5.61/10, Franklinite is a solid option in Gemstone. See all Gemstone ranked.
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