Mineralape
Caledonite
Robert M. Lavinsky·CC BY-SA 3.0·Wikimedia

Caledonite

Cu2Pb5(SO4)3(CO3)(OH)6
Orthorhombic heart IMA grandfathered

Caledonite is a rare secondary mineral with the chemical formula copper(II) lead(II) sulfate carbonate hydroxide. It belongs to the orthorhombic crystal system and is classified under the Strunz classification as 7.BC.50. The mineral typically exhibits a vitreous luster, a hardness of approximately 3.5 to 4 on the Mohs scale, and a density of around 4.5 to 5 g/cm³. It is known for its striking green to greenish-blue coloration. Caledonite is a member of the nesosilicate group, though it is more accurately described as a basic lead copper sulfate carbonate hydroxide. It is typically found in the oxidation zones of lead and copper deposits.

Composition

Composizione (% in peso)
Pb
O
Cu
  • PbLead64.2%
  • OOxygen20.8%
  • CuCopper7.9%
  • SSulfur6.0%
  • CCarbon0.7%
  • HHydrogen0.4%

Overview

Caledonite is a rare secondary mineral with the chemical formula copper(II) lead(II) sulfate carbonate hydroxide. It belongs to the orthorhombic crystal system and is classified under the Strunz classification as 7.BC.50. The mineral typically exhibits a vitreous luster, a hardness of approximately 3.5 to 4 on the Mohs scale, and a density of around 4.5 to 5 g/cm³. It is known for its striking green to greenish-blue coloration. Caledonite is a member of the nesosilicate group, though it is more accurately described as a basic lead copper sulfate carbonate hydroxide. It is typically found in the oxidation zones of lead and copper deposits.

Etymology

Caledonite is named after Scotland, where it was first discovered. The name reflects the mineral's Scottish origin and its historical significance in the region.

Geological genesis

Caledonite forms in the oxidation zones of lead and copper deposits, typically as a secondary mineral through the alteration of primary sulfide minerals. Its formation is associated with weathering processes and the interaction of sulfates, carbonates, and hydroxides in mineral-rich environments.

Occurrence

Caledonite is known from several localities in Scotland, its type and primary occurrence region. It is a rare mineral and is not widely distributed beyond its Scottish type locality.

Spiritual meaning and crystal therapy

Spiritual meaning

Caledonite is traditionally associated with spiritual growth and transformation. It is believed to support inner harmony and emotional healing, guiding one toward balance and self-awareness on the spiritual path.

Esoteric properties

Caledonite is said to promote emotional healing and provide a sense of calm. It is associated with releasing negative energies and encouraging a deeper connection to one's inner wisdom and spiritual purpose.

Associated chakra

Caledonite is traditionally linked to the heart chakra due to its green hues and is believed to support emotional balance, love, and compassion, helping to open the heart to healing and connection.

Crystal therapy use

Caledonite is often used in meditation to support emotional clarity and spiritual insight. It can be placed on the heart chakra, worn as jewelry, or carried to help maintain a sense of calm and inner peace.

Information on crystal therapy is provided for cultural and traditional purposes only. It does not replace medical advice or treatment. Always consult a doctor for health issues.