Cervantite
A variety of Minerals
What is Cervantite?
Cervantite is an antimony oxide mineral with formula SbSbO4 (antimony tetroxide). It was first described in 1850 for an occurrence in Cervantes, Sierra de Ancares, Lugo, Galicia, Spain, and named for the locality. The mineral was questioned and disapproved, but re-approved and verified in 1962 based on material from the Zajaca-Stolice district, Brasina, Serbia. It occurs as a secondary alteration product of antimony bearing minerals, mainly stibnite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Cervantite 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.
Cervantite Localities Map
See where Cervantite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Yellow, off-white, reddish-white; colourless in transmitted light
- Hardness (Mohs)
- 4 - 5
- Density
- 6.64 g/cm³
- Streak
- Light yellow, white
Chemical Properties
- Chemical Formula
- Sb3+Sb5+O4
- Elements
- O, Sb
Also Known As
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Cervantite FAQs
How do I identify Cervantite?
Cervantite can be identified by its hardness of 4 - 5 on the Mohs scale, Yellow color. Look for these key characteristics when examining specimens.
What color is Cervantite?
Cervantite typically appears in Yellow, off-white, reddish-white; colourless in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Cervantite?
Cervantite has a hardness of 4 - 5 on the Mohs scale. This gives it moderate hardness.
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