Iron-Talc Mineral Data, minerology database

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

Mineral	Iron-Talc
Synonym	Minnesotaite

Minnesotaite (synonym)

Mineral	Minnesotaite
Chemistry	(FeMg) 3 Si 4 O 10 (OH) 2
Color	Greenish -grey
Luster	Pearly
CrystalSystem	Monoclinic
Hardness	1½ - 2
Streak	White
IMAStatus	Approved
Discovered	1944
CellParameters	a = 5.5b = 9.38c = 19.3 β=99.5°
Ratio	a:b:c = 0.586 : 1 : 2.058
OpticalType	Biaxial (-)
RI	n α =1.578 - 1.583 n β =1.578 - 1.622 n
Birefringence	δ=0.037 - 0.040
SurfaceRelief	Moderate
Strunz	8/H.09-50 8 : Silicates H : Phyllosilicates (layered)Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others 09 : Talc series

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