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Beryl

Silicate Minerals

Beryl is a mineral composed of beryllium aluminium silicate with the chemical formula Be3Al2(SiO3)6. Its well-known varieties include emerald and aquamarine. Naturally occurring hexagonal crystals can reach several meters in size, although terminated crystals are relatively rare. Pure beryl is colorless but is frequently tinted by impurities, with green, blue, yellow, pink and red (the rarest) all possible, and it is an ore source of beryllium. In this atlas it is the mineral species that gemstones such as emerald and aquamarine record.

Facts
Kind
Mineral 1
Chemical Formula
Be3Al2(SiO3)6 1
Hardness (Mohs)
7.75 1
Commonly cited range is 7.5 to 8.0 on the Mohs scale; 7.75, the midpoint, is used here.
Classification
Crystal System
Hexagonal 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. Beryl (Wikipedia)
Wikimedia Foundation
  • Beryl, lead paragraph
    is a mineral composed of beryllium aluminium silicate with the chemical formula Be3Al2(SiO3)6
  • Beryl, article text
    Well-known varieties of beryl include emerald and aquamarine.
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