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Rhodochrosite

Rose-red manganese carbonate, banded in Argentina, blood red in Colorado.

Family
Rhodochrosite
Formula
MnCO₃
Mohs
3.5 to 4
System
Trigonal

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Science

Rhodochrosite is manganese carbonate, forming in silver veins and in the stalactites of abandoned Inca mines at Capillitas, which are sliced to show pink and white rings. Colorado's Sweet Home mine produced the Alma King, a 14 cm cherry-red crystal on display in Denver.

Mineral
Rhodochrosite
Formula
MnCO₃
Crystal system
Trigonal
Mohs hardness
3.5 to 4
Specific gravity
3.50 to 3.70
Refractive index
1.597 to 1.817
Lustre
Vitreous to pearly
Colours
Pink, Red, Banded rose

Composition

MnCO₃. Made of Manganese, Carbon, Oxygen, with trace Calcium, Iron responsible for colour.

in formula trace, gives colour

Origin

  • Argentina
    Capillitas, banded stalactites
  • United States
    Sweet Home mine, Colorado, red crystals
  • Peru
  • South Africa
    N'Chwaning
  • Mexico

Filled dots are primary sources

Rarity

Uncommon
3 of 5

Banded material is available; transparent red rhombohedra from the Sweet Home mine, closed in 2004, are among the most valued mineral specimens.

  1. 1 Abundant
  2. 2 Common
  3. 3 Uncommon
  4. 4 Rare
  5. 5 Exceptional

Hardness

Rhodochrosite sits at 3.5 to 4 on the Mohs scale. A steel knife will scratch it; it suits pendants and display more than rings.

Fingernail
Copper coin
Knife, glass
Steel file
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10

Energy

Associations from crystal-healing tradition, recorded here as folklore. They are not medical claims.

Chakras

  • Heart

Element

  • Fire

Zodiac

  • Leo
  • Scorpio

Planets

  • Venus
  • Mars

Properties

  • Self-love
  • Emotional healing
  • Joy
  • Compassion

Lore

Argentine legend calls it the Rosa del Inca, the blood of Inca kings and queens turned to stone. It is Argentina's national gemstone and Colorado's state mineral.

Its modern practice reputation is the heart's: love directed inward first.

  • Alma King
    The finest known crystal, from Sweet Home mine, 1992.
  • Manganese
    The pink of manganese, as in rhodonite and morganite.