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Jadeite

Silicate Minerals

Jadeite is a pyroxene mineral with composition NaAlSi2O6. It is hard (Mohs hardness of about 6.5 to 7.0), very tough and dense, with a specific gravity of about 3.4, and is found in a wide range of colors, most often shades of green or white. It forms only in the subduction zones of continental margins, where rock undergoes metamorphism at high pressure but relatively low temperature. Jadeite is the principal mineral making up the most valuable form of jade, a precious stone particularly prized in China, and most gem-quality jadeite jade comes from northern Myanmar.

Facts
Kind
Mineral 1
Chemical Formula
NaAlSi2O6 1
Hardness (Mohs)
6.75 1
The Wikipedia article gives about 6.5 to 7.0 on the Mohs scale; 6.75, the midpoint, is used here.
Classification
Crystal System
Monoclinic 1
Classification
Silicate Mineral 1
Use
Gemstone 1
Connections

Classified As

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Crystallizes In System

Entity-backed identity for the crystal system this mineral already carries as an enum fact, phase 3 bucket conversion (docs\design_entity_backed_browse_buckets_20260928.md, w-bucketconv-divmore2-0929). The original fact stays on the entry unchanged.

In Discipline

In the Other Atlases
Sources
1. Jadeite (Wikipedia)
Wikimedia Foundation
  • Jadeite, lead paragraph
    Jadeite is a pyroxene mineral with composition NaAlSi2O6.
  • Jadeite, article text
    It is hard (Mohs hardness of about 6.5 to 7.0), very tough, and dense, with a specific gravity of about 3.4.
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