Welcome back

or

Mineral - Gyrolite

GyroliteNaCa₁₆[(OH)₈|(Si,Al)₂₄O₆₀]·14H₂O
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
NaCa₁₆[(OH)₈|(Si,Al)₂₄O₆₀]·14H₂O
Unit Cell
Physical Properties
Hardness
3 - 4
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
brownyellowgreencolorless
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Space Group
Habit
fibrous, spherical, tabular
Formation
hydrothermal, Substitution
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Gyrolite