Entry № 034
Aurichalcite
Basic Zinc Copper Carbonate
Feather-tufts the colour of morning sky.
Chakra
Throat · Heart
Element
Water · Air
Zodiac
Pisces · Aquarius

I. The Metaphysical Reading
How the stone has been held.
Aurichalcite is worked with as a stone of soft, honest communication, especially where fear has kept a truth unspoken for a long time. Practitioners keep it near the throat during writing or difficult conversation, and associate its feather-like habit with words offered rather than pushed.
- Chakra
- Throat · Heart
- Element
- Water · Air
- Zodiac
- Pisces · Aquarius
- Keynote
- Feather-tufts the colour of morning sky.
II. The Scientific Reading
What the lattice actually does.
Aurichalcite is a secondary basic carbonate of zinc and copper that forms in the oxidised zone of base-metal deposits, most often as fragile silky tufts of pale blue acicular crystals on limonite or matrix. Because its hardness is only 1 to 2 the crystals are easily crushed, and specimens are prized as much for their delicacy as their colour. Classic sources include the Kelly Mine in New Mexico, Bisbee in Arizona, and the ancient slag heaps of Laurion in Greece.
- Formula
- (Zn,Cu)₅(CO₃)₂(OH)₆
- System
- Monoclinic
- Hardness
- 1 – 2 (Mohs)
- Provenance
- USA (Arizona, New Mexico), Mexico, Greece (Laurion), Namibia
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- (Zn,Cu)₅(CO₃)₂(OH)₆
- Crystal System
- Monoclinic
- Mohs Hardness
- 1 – 2 (Mohs)
- Density
- 3.96 g/cm³
- Refractive Index
- 1.654 – 1.740
- Provenance
- USA (Arizona, New Mexico), Mexico, Greece (Laurion), Namibia
- Color Origin
- Pale sky blue to greenish blue in silky acicular tufts
Related Crystals
Stones that share this lattice
Next in the Atlas
Autunite
The green fire that must be watched from a distance.




