Nontronite from
San Francisco North 7.5 quadrangle, San Francisco, San Francisco County, California, USA
Locality type: | Quadrangle | |
Classification | ||
---|---|---|
Species: | Nontronite | |
Formula: | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O | |
Comments: | Occurs as crumbly veins 2.5 to 3.0 cm thick in some serpentines. | |
Colour: | Brown | |
Confirmation | ||
Validity: | Believed Valid | |
Data | ||
Mineral Data: | Click here to view Nontronite data | |
Locality Data: | Click here to view San Francisco North 7.5 quadrangle, San Francisco, San Francisco County, California, USA | |
Data Identifiers | ||
Mindat Occurrence Record ID: | 677093 | |
Long-form Identifier: | 1:3:677093:8 | |
GUID (UUID V4): | c628f437-b4d5-4405-8fda-54bce8adb780 | |
References | ||