Lawsonite

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

Lawsonite

Lawsonite

CaAl₂Si₂O₇(OH)₂·H₂O

Sorosilicate mineral

Properties

Chemical formula
CaAl₂Si₂O₇(OH)₂·H₂O
Group
Silicates
Crystal system
Orthorhombic
Hardness (Mohs)
7,5
Color
Colorless
Luster
—
Streak
White
Density
—
Cleavage
—
Fracture
—
Tenacity
—
Crystal habit
—
Transparency
—
Space group
63
Fluorescence
—
Magnetism
—
Radioactivity
—
Refractive index
—
Optical character
—
Birefringence
—
Pleochroism
—
Strunz classification
9.BE.05
Dana classification
56.2.3.1
IMA status
Grandfathered mineral (G)
IMA symbol
Lws
Locality
—
Type locality
—
Discovery year
—

Etymology

Named after Andrew Lawson

Source: Wikidata

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