Portlandite

Photo: Henk Smeets - Tomeik Minerals · CC BY 4.0

Portlandite

Portlandite

Ca(OH)₂

Calcium hydroxide mineral

Properties

Chemical formula
Ca(OH)₂
Group
Oxides
Crystal system
Trigonal
Hardness (Mohs)
—
Color
Colorless
Luster
—
Streak
—
Density
—
Cleavage
—
Fracture
—
Tenacity
—
Crystal habit
—
Transparency
—
Space group
—
Fluorescence
—
Magnetism
—
Radioactivity
—
Refractive index
—
Optical character
—
Birefringence
—
Pleochroism
—
Strunz classification
4.FE.05
Dana classification
—
IMA status
Grandfathered mineral (G)
IMA symbol
Por
Locality
🇬🇧 Scawt Hill
Type locality
—
Discovery year
—

Etymology

Named after portland cement

Source: Wikidata

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