Beryl

Photo: Robert M. Lavinsky · CC BY-SA 3.0

Beryl

Beryl

Be₃Al₂Si₆O₁₈

Gemstone: cyclosilicate

Properties

Chemical formula
Be₃Al₂Si₆O₁₈
Group
Silicates
Crystal system
Hexagonal
Hardness (Mohs)
—
Color
Green
Luster
—
Streak
White
Density
—
Cleavage
—
Fracture
—
Tenacity
—
Crystal habit
—
Transparency
—
Space group
P6/mcc
Fluorescence
—
Magnetism
—
Radioactivity
—
Refractive index
—
Optical character
—
Birefringence
—
Pleochroism
—
Strunz classification
9.CJ.05
Dana classification
61.1.1.1
IMA status
Grandfathered mineral (G)
IMA symbol
Brl
Locality
🇪🇬 Mons Smaragdus
Type locality
—
Discovery year
—

Etymology

Named after Beryllos 3 (Pauly-Wissowa)

Source: Wikidata

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