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Insulating Aggregates Inc. Mine (Insulating Aggregates; Inc. Calif. Quarries Co.), Chalfant (Chalfant Valley), Chalfant Valley, Mono County, California, USAi
Regional Level Types
Insulating Aggregates Inc. Mine (Insulating Aggregates; Inc. Calif. Quarries Co.)Mine
Chalfant (Chalfant Valley)- not defined -
Chalfant ValleyValley
Mono CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 28' 15'' North , 118° 22' 5'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Dixon Lane-Meadow Creek2,645 (2011)10.3km
Bishop3,806 (2017)12.2km
West Bishop2,607 (2011)14.4km
Mesa251 (2011)16.4km
Round Valley435 (2011)20.2km
Mindat Locality ID:
83175
Long-form identifier:
mindat:1:2:83175:9
GUID (UUID V4):
43dad156-de8d-48be-9b94-6f07e7644aba


A former pumice deposit/mine located in secs. 32 & 33, T5S, R33E, MDM, 6.5 km (4.1 miles) S of Chalfant, near the Inyo County line. MRDS database stated accuracy for this location is 1,000 meters.

The deposit is a horizontal bed of white pumice, 12 to 15 feet thick, with overburden of red tuff, 25 to 75 feet thick. The pumice fragments are angular, grayish-white and range in size from 1/16 inch to 2 inches in diameter. Both pumicite and silica are present in thin beds. Local rocks include Quaternary pyroclastic and volcanic mudflow deposits, unit 2 (Long Valley Caldera) and/or Quaternary alluvium and marine deposits.

Workings include surface openings/operations comprised of an open pit.

Commodity used in making soap and cleanser compounds, also for stucco work, white cement and in acoustic plaster.

Production information: Many thousand tons mined as early as 1927.

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Other Databases

Link to USGS MRDS:10109276

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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