Mineral - AB Testmineral
AB Testmineral
Chemical Properties
Mineral Class
Borates
Toxicity
middle
Formula
Mn²⁺Pb₂(CO₃)²⁻x(SO₄)₃,₅ₓ(SiO₁₄H¹⁺) · 2,5H₂O
Unit Cell
Physical Properties
Hardness
1 - 10
Streak
gray
Density
Cleavage
good after {101}, unclear after {010}
Fracture
Tenacity
Optical Properties
Color
blackbrownorangeyellow white
Birefringence
Luster
Transparency
Pleochroism
Zeile 1
Zeile 2
Zeile 3
Geomineralogical Properties
Crystal System
Point Group
Space Group
P 1 (2) , P2 1 /c (14)
Habit
Formation
New 2: In plutonites and their pegmatites, basalts and in hydrothermal alpine veins. Through metasomatism, metamorphism with low temperature/pressure
Paragenesis
Twinning
Rarity
Synonyms
AB Testmineral, Adamite, Calcite
Groups and Members
Supergroup
Olivenit-Gruppe
Subgoup