Laumontite

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

Laumontite

CaAl₂Si₄O₁₂·4H₂O

Zeolite mineral

Properties

Chemical formula
CaAl₂Si₄O₁₂·4H₂O
Group
Oxides
Crystal system
Monoclinic
Hardness (Mohs)
Color
White
Luster
Streak
Density
Cleavage
Fracture
Tenacity
Crystal habit
Transparency
Space group
Fluorescence
Magnetism
Radioactivity
Refractive index
Optical character
Birefringence
Pleochroism
Strunz classification
9.GB.10
Dana classification
77.1.1.4
IMA status
Approved mineral and/or valid name (A)
IMA symbol
Lmt
Locality
🇫🇷 Huelgoat
Type locality
Discovery year

Etymology

Named after Gillet de Laumont

Source: Wikidata

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