Mineral - Hopeite
Hopeite
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Zn₃(PO₄)₂ · 4H₂O
Unit Cell
Physical Properties
Hardness
3.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitebrowngrayyellow
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
tufty, prismatic, tabular
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Hopeite