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Entry № 075

Bolivianite (Ametrine)

Bicolour Quartz (SiO₂)

One crystal holding two suns.

Chakra

Solar Plexus · Crown

Element

Fire · Air

Zodiac

Libra · Gemini

Bolivianite (Ametrine)

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

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Fine grey lines for the long night.