Rhodochrosite
Image: Vassil (Public domain)
Mineral NameRhodochrosite
Chemical FormulaMnCO₃
Mohs Hardness3.5
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavageperfect rhombohedral {1011}
Fractureuneven
Specific Gravity3.6
Colorsrose-red, pink, white, gray
Transparencytranslucent
Type LocalityCapillitas Mine (Argentina)
Mineral GroupCarbonates
Usesjewelry, ornamental stone, collector
Associated Mineralsquartz, fluorite, pyrite, calcite
Rarityuncommon
Description
This image displays a polished slice of rhodochrosite, featuring intricate concentric and wavy bands of vibrant rose-red, various shades of pink, and lighter white to grayish layers. The patterns are characteristic of its stalactitic or botryoidal growth.
Geological Context
Rhodochrosite typically forms in hydrothermal veins associated with manganese-rich ore deposits, often in low-temperature environments. Its distinctive banded forms are commonly found in stalactitic or botryoidal growths within caves or open spaces.
