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Minerals - Rhodochrosite | TerraCollect
Mineral - Rhodochrosite
Rhodochrosite
Mn[CO₃]
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Chemical Properties
Mineral Class
Carbonates
Toxicity
none
Formula
Mn[CO₃]
Unit Cell
a=4.78 c=15.67 Z=6
Physical Properties
Hardness
3.5 - 4.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
red
pink
Birefringence
0.218
Luster
Vitreous
Transparency
translucent,
transparent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
Composition
Elements
Mass
CO₂
38.26
FeO
0.77
MnO
60.87
MgO
0.01
CaO
0.51
Kosovo
Groups and Members
Calcite-Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Perfect after {10
1
1}
Fracture
uneven
Tenacity
Brittle
trigonal
Point Group
ditrigonal-scalenohedral -
3
m
Space Group
R
3
c (167)
Habit
leafy,
coarse,
crusty,
spherical,
Rhombohedron,
rosette,
Scalenohedron,
stalactitic,
tabular,
grape-shaped
Formation
Hydrothermal, sedimentary, or metasomatic through precipitation of Mn-containing solutions under CO₂-rich, reducing conditions
Paragenesis
Twinning
Rarity
Common
Synonyms
Rhodochrosite,
Rotmanganerz,
Himbeerspat,
Manganspat,
Diallogite,
Strömite,
Villaurite
