Mineral - Weilite
Weilite
Chemical Properties
Mineral Class
Arsenates
Toxicity
none
Formula
Ca(HAsO₄)
Unit Cell
a=7,06 b=6,89 c=7,20 α=97° β=103° γ=88° Z=4
Physical Properties
Hardness
1 - 10
Streak
white
Density
Normal (2-3,5)
Cleavage
nd
Fracture
uneven
Tenacity
nd
Optical Properties
Color
whitecolorless
Birefringence
0.044
Luster
Greasy,
Earthy,
Waxy
Transparency
translucent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Space Group
Habit
coarse, crusty, massive, acicular, radial
Formation
Oxidationszone von hydrothermalen Arsen-Lagerstätten
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Weilite
Composition
Elements
Mass
As₂O₅
61,7
CaO
33,1
H₂O
5,2
Deutschland
Groups and Members
Monetit-Gruppe