| Name | 
  | 
Witherite | 
| Chemistry | 
  | 
BaCO3 | 
| Hardness | 
  | 
3.5 | 
| Lustre | 
  | 
vitreous - greasy | 
| Colour | 
  | 
colourless, white, grey, yellowish | 
| Streak | 
  | 
white  | 
| Density [g/cm3] | 
  | 
4.3 | 
| Crystal habit | 
  | 
orthorhombic, crystals
often pseudohexagonal (trilling twins, six-sided prism) | 
| Cleavage, Fracture | 
  | 
[010] distinct, fracture uneven | 
| other characteristics
and occurrences | 
  | 
massive, globular, radial,
fibrous | 
  | 
  | 
  |