Mineral - Hydroxylherderite
Hydroxylherderite
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
CaBe(PO₄)(OH,F)
Unit Cell
Physical Properties
Hardness
5 - 5.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
browngrayyellowgreenbluevioletcolorless
Birefringence
Luster
Vitreous,
Resinous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
prismatic, tabular
Formation
Magmatisch, (Pegmatite)
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Hydroxylherderite