Locality type: | Pit |
Classification |
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Species: | Montmorillonite |
Formula: | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Montmorillonite data |
Locality Data: | Click here to view Refinite Corp Bentonite Pit, Ardmore, Fall River County, South Dakota, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 385666 |
Long-form Identifier: | 1:3:385666:6 |
GUID (UUID V4): | 4511ce45-85b7-46fd-afd9-d175c010a0f6 |
Nearest other occurrences of Montmorillonite |
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0.4km (0.2 miles) | ⓘArdmore, Fall River County, South Dakota, USA |
80.7km (50.2 miles) | ⓘTin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
96.3km (59.8 miles) | ⓘHugo Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
97.4km (60.5 miles) | ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
References |
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