Entry № 278
Mariposite
Chromian mica quartzite
Apple-green shimmer of the golden hills.
Chakra
Heart
Element
Earth
Zodiac
Taurus · Virgo

I. The Metaphysical Reading
How the stone has been held.
Mariposite is worked with as a stone of unhurried change and quiet freedom. Its soft green shimmer is said to encourage a lighter relationship with work, land, and the body — a stone for those learning to slow down without losing purpose.
- Chakra
- Heart
- Element
- Earth
- Zodiac
- Taurus · Virgo
- Keynote
- Apple-green shimmer of the golden hills.
II. The Scientific Reading
What the lattice actually does.
Mariposite is a green chromium-bearing variety of muscovite mica, most often found as fine flecks within a quartzite host rock. Named after Mariposa County in California, where it was first described in the gold-bearing belts of the Sierra Nevada, it commonly occurs in metamorphosed serpentinite and gold-quartz vein systems.
- Formula
- KAl₂(AlSi₃O₁₀)(OH)₂ with Cr substitution, in SiO₂ matrix
- System
- Monoclinic (mica) in trigonal quartzite
- Hardness
- 3 – 7 (Mohs, variable)
- Provenance
- USA (California, Sierra Nevada — Mariposa County)
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- KAl₂(AlSi₃O₁₀)(OH)₂ with Cr substitution, in SiO₂ matrix
- Crystal System
- Monoclinic (mica) in trigonal quartzite
- Mohs Hardness
- 3 – 7 (Mohs, variable)
- Density
- 2.70 – 2.85 g/cm³
- Refractive Index
- 1.552 – 1.618
- Provenance
- USA (California, Sierra Nevada — Mariposa County)
- Color Origin
- Apple green from chromium in mica, silvery flecks
Related Crystals
Stones that share this lattice
Next in the Atlas
Mexican Agate
Wild laced rhythm of the desert.




