Nacrite Mineral Data, minerology database

Mineral Reference Lookup for Nacrite

This reference page contains mineralogic data for Nacrite 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 Nacrite in the database: Nacrite Nacrite (of Brongniart) Plumbonacrite

Mineralogical Reference

Nacrite

Mineral	Nacrite
Chemistry	Al 2 Si 2 O 5 (OH) 4
Color	white greyYellowishbrownishetc.
Luster	Pearly
Transparency	Monoclinic
CrystalSystem	Monoclinic
Hardness	2 - 2½
Streak	White
IMAStatus	Approved
Discovered	1807
CellParameters	a = 5.14b = 8.94c = 14.4 β=113.7°
Ratio	a:b:c = 0.575 : 1 : 1.611
OpticalType	Biaxial (-)
RI	n α =1.557 n β =1.562 n γ =1.563
Birefringence	δ=0.006
SurfaceRelief	Low
TypeLocality	Einigkeit Mine Brand- Erbisdorf Freiberg District Erzgebirge Saxony Germany
Strunz	8/H.25-30 8 : Silicates H : Phyllosilicates (layered)Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others 25 : Kaolinite group

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