Mineral - Yofortierite
Yofortierite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Mn₅Si₈O₂₀(OH)₂ · 8-9H₂O
Unit Cell
Physical Properties
Hardness
2.5
Streak
pink
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
brownyellowbronze
Birefringence
Luster
Metallic,
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
tufty, spherical, acicular, radial
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Yofortierite