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Entry № 122

Danburite

Calcium Boron Silicate

A clear boron gemstone of pale-lit clarity.

Chakra

Heart · Crown

Element

Air

Zodiac

Leo

Danburite

I. The Metaphysical Reading

How the stone has been held.

Danburite is worked with as a stone of tender clarity, kept nearby during heart openings, hospice work and the quiet room where forgiveness happens. Practitioners hold it as a reminder that light does not have to be bright to be complete.

Chakra
Heart · Crown
Element
Air
Zodiac
Leo
Keynote
A clear boron gemstone of pale-lit clarity.

II. The Scientific Reading

What the lattice actually does.

Danburite is a calcium boron silicate first described in 1839 from Danbury, Connecticut. The finest gem-quality crystals come from the Charcas district of San Luis Potosí, Mexico, where colourless to pale yellow prisms grow in hydrothermal veins cutting limestone. It cleaves poorly and takes a good facet.

Formula
CaB₂Si₂O₈
System
Orthorhombic
Hardness
7 – 7.5 (Mohs)
Provenance
Mexico (Charcas, San Luis Potosí), Madagascar, Russia, Japan, USA (Danbury, Connecticut)

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
CaB₂Si₂O₈
Crystal System
Orthorhombic
Mohs Hardness
7 – 7.5 (Mohs)
Density
2.93 – 3.02 g/cm³
Refractive Index
1.630 – 1.636
Provenance
Mexico (Charcas, San Luis Potosí), Madagascar, Russia, Japan, USA (Danbury, Connecticut)
Color Origin
Transparent colourless to pale yellow or pink prismatic crystals

Related Crystals

Stones that share this lattice

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Next in the Atlas

Datolite

A glassy borate of basalt cavities and copper country.