Mineral - Ferrierite-(Mg)
Ferrierite-(Mg)
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
(Mg₂)(Na,K)₅(Si₃₁Al₅)O₇₂ · 18H₂O
Unit Cell
Physical Properties
Hardness
3 - 3.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitegrayorangeyellowcolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
leafy, spherical, radial
Formation
Magmatisch, Vulkanisch
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Ferrierite-(Mg)