Minerals
Heftetjernite
heftetjernite
Heftetjernite: Mineral information, data and localities. — via www.mindat.org · Source
Overview
Heftetjernite is a mineral species (tantalate mineral). It crystallises in the monoclinic system. Mohs hardness about 4.5. Nickel–Strunz class: 4.DB.30.
Identification characteristics
- Mohs hardness 4.5
Scientific references
- Heftetjernite — Wikidata. https://www.wikidata.org/wiki/Q17448737 Link