Mineral - Zimbabweite
Zimbabweite
Chemical Properties
Mineral Class
Oxides and Hydrxides
Toxicity
middle
Formula
(Na,K)₂PbAs₄(Ta,Nb,Ti)₄O₁₈
Unit Cell
Physical Properties
Hardness
5 - 5.5
Streak
white
Density
Very Heavy (>6)
Cleavage
Fracture
Tenacity
Optical Properties
Color
brownyellow
Birefringence
Luster
Adamantine
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
granular
Formation
hydrothermale Alteration von Fluor-Granit-Pegmatiten
Paragenesis
Twinning
Rarity
Rare
Synonyms
Zimbabweite