Nabimusaite
A variety of Minerals
What is Nabimusaite?
Nabimusaite is a very rare mineral with formula KCa12(SiO4)4(SO4)2O2F. Its structure, as in case of similar aradite and zadovite, is a derivative of the one of hatrurite. Nabimusaite gives its name to the nabimusaite group. The mineral was found in a pyrometamorphic rock of the Hatrurim Formation, a site known for the natural pyrometamorphism. It is interpreted to have formed due to interaction of a precursor assemblage with sulfate-rich melt. Nabimusaite is potassium- and fluorine-analogue of dargaite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Nabimusaite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Nabimusaite Localities Map
See where Nabimusaite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Composition of Nabimusaite
Crystal structure of nabimusaite is modular. It is of antiperovskite type. It is composed of hatrurite-like modules [Ca12(SiO4)4O2F] anions in octahedral and cations in tetrahedral coordination with [K(SO4)2]3 modules. The two modules are mutually intercalated.
Quick Facts
Physical Properties
- Color
- Colorless
- Hardness (Mohs)
- 5
- Density
- 3.119 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- KCa12(SiO4)4(SO4)2O2F
- Elements
- Ca, F, K, O, S, Si
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Nabimusaite FAQs
How do I identify Nabimusaite?
Nabimusaite can be identified by its hardness of 5 on the Mohs scale, Colorless color. Look for these key characteristics when examining specimens.
What color is Nabimusaite?
Nabimusaite typically appears in Colorless. Color can vary depending on impurities and formation conditions.
How hard is Nabimusaite?
Nabimusaite has a hardness of 5 on the Mohs scale. This gives it moderate hardness.
What is the composition of nabimusaite of Nabimusaite?
Crystal structure of nabimusaite is modular. It is of antiperovskite type. It is composed of hatrurite-like modules [Ca12(SiO4)4O2F] anions in octahedral and cations in tetrahedral coordination with [K(SO4)2]3 modules. The two modules are mutually intercalated.
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