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Chemical Composition: BaSO4
Group: Barite
System: Orthorhombic
Family: Sulphates
Hardness: 2.5 - 3.5
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- Tabular crystals
- Sometimes groups of plates form fan shapes or
rosettes
- Perfect prismatic cleavage
- Nonmetallic; vitreous luster
- Other colours: colourless, yellow, red, green, black
- Very heavy, fragile
- Transparent or translucent
- Insoluble in acids
- Fuses with difficulty
- Some varieties are fluorescent in ultraviolet light
- White streak
- Specific gravity 4.48
- Found in: England, Italy, Romania, USA
- Uses: paper & rubber industries
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