Entry № 075
Bolivianite (Ametrine)
Bicolour Quartz (SiO₂)
One crystal holding two suns.
Chakra
Solar Plexus · Crown
Element
Fire · Air
Zodiac
Libra · Gemini

I. The Metaphysical Reading
How the stone has been held.
Bolivianite is worked with as a stone of reconciled opposites, particularly of intuition with action and of solitude with public work. Practitioners carry it when they must hold two apparently contradictory truths at once and act on both.
- Chakra
- Solar Plexus · Crown
- Element
- Fire · Air
- Zodiac
- Libra · Gemini
- Keynote
- One crystal holding two suns.
II. The Scientific Reading
What the lattice actually does.
Ametrine, marketed under the Bolivian name bolivianite, is a naturally bicolour quartz in which one sector of the crystal contains ferric iron in the purple amethyst state and the adjacent sector contains it in the yellow citrine state, the difference set by minute variations in temperature and oxidation during growth. The only significant commercial source is the Anahí Mine in the Santa Cruz department of eastern Bolivia, worked since the seventeenth century.
- Formula
- SiO₂ with Fe³⁺ (bicolour zoning)
- System
- Trigonal
- Hardness
- 7 (Mohs)
- Provenance
- Bolivia (Anahí Mine - sole commercial source)
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- SiO₂ with Fe³⁺ (bicolour zoning)
- Crystal System
- Trigonal
- Mohs Hardness
- 7 (Mohs)
- Density
- 2.65 g/cm³
- Refractive Index
- 1.544 – 1.553
- Provenance
- Bolivia (Anahí Mine - sole commercial source)
- Color Origin
- Purple amethyst and golden citrine in a single crystal
Related Crystals
Stones that share this lattice
Next in the Atlas
Botswana Agate
Fine grey lines for the long night.




