Sarabauite
A variety of Minerals
What is Sarabauite?
Sarabauite (sar-a-bau'-ite) is a red monoclinic sulfide mineral with the chemical formula: CaSb10O10S6.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Sarabauite 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.
Sarabauite Localities Map
See where Sarabauite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Characteristics of Sarabauite
Sarabauite is a biaxial negative mineral. All minerals of the monoclinic, orthorhombic, and triclinic systems are biaxial minerals. Unlike uniaxial minerals, biaxial crystals have 2 optic axes. This means they have two directions in which light can travel without birefringence, three principal axes, and accordingly three different indices of refraction. Biaxial minerals are further subdivided by optic sign. The optic angle, 2V, is the angle between the two optic axes that is split by the direction of the lowest index of refraction. If 2V is acute, the mineral is biaxial positive. In sarabauite crystals this angle is obtuse, thus the mineral is biaxial negative.
Quick Facts
Physical Properties
- Color
- Carmine red
- Hardness (Mohs)
- 4
- Streak
- Orange
Chemical Properties
- Chemical Formula
- CaSb3+10S6O10
- Elements
- Ca, O, S, Sb
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Sarabauite FAQs
How do I identify Sarabauite?
Sarabauite can be identified by its hardness of 4 on the Mohs scale, Carmine red color. Look for these key characteristics when examining specimens.
What color is Sarabauite?
Sarabauite typically appears in Carmine red. Color can vary depending on impurities and formation conditions.
How hard is Sarabauite?
Sarabauite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
What is the characteristics of sarabauite of Sarabauite?
Sarabauite is a biaxial negative mineral. All minerals of the monoclinic, orthorhombic, and triclinic systems are biaxial minerals. Unlike uniaxial minerals, biaxial crystals have 2 optic axes. This means they have two directions in which light can travel without birefringence, three principal axes, and accordingly three different indices of refraction. Biaxial minerals are further subdivided by optic sign. The optic angle, 2V, is the angle between the two optic axes that is split by the direction of the lowest index of refraction. If 2V is acute, the mineral is biaxial positive. In sarabauite crystals this angle is obtuse, thus the mineral is biaxial negative.
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