Mathesiusite
A variety of Minerals
What is Mathesiusite?
Mathesiusite is a sulfate mineral containing potassium, vanadium, and uranium and has the chemical formula: K5(UO2)4(SO4)4(VO5)·4(H2O). It is a secondary mineral formed during post-mining processes. It was discovered in the Jáchymov mining district, Czech Republic and named in 2013 after Johannes Mathesius (1504–1565), who studied minerals from the area (known then as Joachimsthal, Bohemia).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Mathesiusite 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.
Mathesiusite Localities Map
See where Mathesiusite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Yellowish green
- Hardness (Mohs)
- 2
- Density
- 4.02 g/cm³
- Streak
- Greenish white
Chemical Properties
- Chemical Formula
- K5(UO2)4(SO4)4(VO5)·4H2O
- Elements
- H, K, O, S, U, V
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Mathesiusite FAQs
How do I identify Mathesiusite?
Mathesiusite can be identified by its hardness of 2 on the Mohs scale, Yellowish green color. Look for these key characteristics when examining specimens.
What color is Mathesiusite?
Mathesiusite typically appears in Yellowish green. Color can vary depending on impurities and formation conditions.
How hard is Mathesiusite?
Mathesiusite has a hardness of 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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