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Mineral Reference Lookup for Iron-Talc

This reference page contains mineralogic data for Iron-Talc and folklore and metaphysical beliefs. If the mineral is an alternate naming of a more common name, the more common mineral's data is displayed below the list of synonyms.

Minerals matching Iron-Talc in the database: Iron-Talc  

Mineralogical Reference

Iron-Talc
MineralIron-Talc
SynonymMinnesotaite

Minnesotaite (synonym)

MineralMinnesotaite
Chemistry(FeMg) 3 Si 4 O 10 (OH) 2
ColorGreenish -grey
LusterPearly
CrystalSystemMonoclinic
Hardness1½ - 2
StreakWhite
IMAStatusApproved
Discovered1944
CellParametersa = 5.5b = 9.38c = 19.3 β=99.5°
Ratioa:b:c = 0.586 : 1 : 2.058
OpticalTypeBiaxial (-)
RIn α =1.578 - 1.583 n β =1.578 - 1.622 n
Birefringenceδ=0.037 - 0.040
SurfaceReliefModerate
Strunz8/H.09-50 8 : Silicates H : Phyllosilicates (layered)Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others 09 : Talc series
JDPND_006
OBATPND_013
AGBTBD_046
AMTUM_148
JSPLYPND_009
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