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Richterite from
Coyote Peak, Humboldt County, California, USA


03305090017368783821365.jpg
Richterite

Coyote Peak, Humboldt County, California, USA
03305090017368783821365.jpg
Richterite

Coyote Peak, Humboldt County, California, USA
03987230017339893436579.jpg
Richterite

Coyote Peak, Humboldt County, California, USA
Locality type:Peak
Classification
Species:Richterite
Formula:Na(CaNa)Mg5(Si8O22)(OH)2
Chemical Analyses:
Oxide wt%:
1
SiO252.71 %
Al2O31.41 %
TiO21.76 %
Fe2O30.00 %
FeO12.25 %
MnO0.28 %
MgO15.21 %
CaO5.33 %
Na2O6.28 %
K2O1.73 %
Li2O0.00 %
F1.58 %
H2O1.19 %
O=F-0.67 %
Total:99.06 %
Empirical formulas:
1(Na0,619K0,325)?0,943 (Na1,175Ca0,825)?2 (Mg3,339Feii1,509Ti0,195Mnii0,035Al0.007)?5.085 (Si7,762Al0,239)?8,001 O22 ((OH)1,169F0,736O0,095)?2,001
Sample references:
1740
Hawthorne, Frank C., Oberti, R., Zanetti, A., Czamanske, G. K. (1998) The role of Ti in hydrogen-deficient amphiboles: sodic-calcic and sodic amphiboles from Coyote Peak, California. The Canadian Mineralogist, 36 (5). 1253-1265
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Eckermannite1
Aegirine1
Natrolite1
Data
Mineral Data:Click here to view Richterite data
Locality Data:Click here to view Coyote Peak, Humboldt County, California, USA
Data Identifiers
Mindat Occurrence Record ID:139601
Long-form Identifier:1:3:139601:0
GUID (UUID V4):0
References
www.koeln.netsurf.de/~w.steffens/usa.htm.
 
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