Kutnohorite
Mineral CaMn(CO3)2
About it
Pale pink, curved rhombs, the manganese member of the dolomite group, easily mistaken for rhodochrosite. Named for Kutná Hora, Czechia; fine pink crystals come from the Kalahari manganese field of South Africa.
- Type
- Mineral
- Group
- Carbonate, dolomite group
- Formula
- CaMn(CO3)2
- Hardness (Mohs)
- 3.5–4
- Specific gravity
- 3–3.12
- Streak
- white
- Lustre
- vitreous (glassy), pearly
- Crystal system
- Trigonal
- Colours
- pale pink, white, light brown, pale yellow
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect rhombohedral
Typical values: real specimens vary. For more, see mindat.org.