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Palygorskite from
Pomona Freeway and North-bound Orange Freeway roadcuts, Pomona area, Puente Hills, Los Angeles Co., California, USA

Locality type:Road Cutting
Classification
Species:Palygorskite
Formula:(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Comments:Occurs in the Puente Formation in veins in outcrops throughout a 3 square mile area, as dry, leathery slabs, as vein filling material and as coatings on calcite crystals in vugs.
Confirmation
Validity:Believed Valid
References
References:Henderson, G. (1973) Palygorskite found in northern Puente Hills near Pomona. California Division Mines and Geology California Geology: 26: 280-281; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 441.
Associated Minerals:
Associates:Calcite
Data
Mineral Data:Click here to view Palygorskite data
Locality Data:Click here to view Pomona Freeway and North-bound Orange Freeway roadcuts, Pomona area, Puente Hills, Los Angeles Co., California, USA
Mineral and/or Locality  
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