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Entry № 143

Fenster Quartz

Silicon Dioxide (Skeletal Window Quartz)

A quartz that grew its edges before its faces.

Chakra

Third Eye · Crown

Element

Storm

Zodiac

Scorpio · Aquarius

Fenster Quartz

I. The Metaphysical Reading

How the stone has been held.

Fenster Quartz is worked with as a stone of perspective, kept nearby during shadow work, journaling and any practice that asks a person to look through their own edges. Practitioners hold it as an invitation to notice the frames rather than only the picture.

Chakra
Third Eye · Crown
Element
Storm
Zodiac
Scorpio · Aquarius
Keynote
A quartz that grew its edges before its faces.

II. The Scientific Reading

What the lattice actually does.

Fenster (window) quartz is a form of skeletal quartz in which growth conditions favoured the edges of the crystal over its faces, leaving stepped cavities and open window planes across the terminations. It forms in high-supersaturation, rapidly cooling environments where nutrient supply cannot keep up with crystal expansion. Related to elestial and Jacaré quartz.

Formula
SiO₂
System
Trigonal
Hardness
7 (Mohs)
Provenance
Zambia, Madagascar, Pakistan, USA

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
SiO₂
Crystal System
Trigonal
Mohs Hardness
7 (Mohs)
Density
2.65 g/cm³
Refractive Index
1.544 – 1.553
Provenance
Zambia, Madagascar, Pakistan, USA
Color Origin
Clear to smoky quartz with terraced staircase window faces

Related Crystals

Stones that share this lattice

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Fire Agate

A chalcedony that catches fire on tilt.