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Esquema molecular
Fredrikssonite
Mg2Mn3+(BO3)O2
Description
Fredrikssonite is a rare mineral of the ludwigite group containing magnesium and trivalent manganese. It is a borate formed in contact metamorphic environments.
Chemical composition
Chemical formula
Mg2Mn3+(BO3)O2
Classification
boratos
Crystal system
ortorrómbico
Luster
vítreo
Streak
marrón claro
Density
3.97 g/cm³
Temperatura de fusión
1200 °C
Mohs Scale — 6.5/10
1
2
3
4
5
6
7
8
9
10
Referencia: Cuarzo
Color
#a52a2a
#8b0000
marrón rojizo a rojo oscuro
Usos
Uso cotidiano
Primarily a collector's mineral, with no direct daily use.
Uso industrial
Scientific study of boron mineralogy in contact metamorphism deposits.
Similar minerals
Derivatives and uses
Not commercially processed for derivatives, object of mineralogical study.
Galería de la comunidad
Periodic table
Contains elements: Mg · Mn · B · O
B
Boron
#5 · Metalloids
Atomic mass10.81 u
Density2.08 g/cm³
Melting point2075.8 °C
Boiling point3926.8 °C
StateSolid
Alkali metalsAlkaline earth metalsTransition metalsPost-transition metalsMetalloidsNonmetalsHalogensNoble gasesLanthanidesActinides
