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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Magstone Products Mine, Riverside, Riverside County, California, USAi
Regional Level Types
Magstone Products MineMine
RiversideCity
Riverside CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
33° 56' 45'' North , 117° 27' 9'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Pedley12,672 (2011)3.9km
Riverside322,424 (2017)5.3km
Rubidoux34,280 (2011)7.1km
Sunnyslope5,153 (2011)7.6km
Jurupa Valley21,930 (2018)7.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
West End Prospectors CorporationNorco, California9km
Orange Belt Mineralogical SocietySan Bernardino, California23km
Valley Prospectors, Inc.San Bernardino, California23km
Yucaipa Valley Gem & Mineral SocietyYucaipa, California39km
Route 66 Gold Miners IncBrea, California41km
Mindat Locality ID:
87131
Long-form identifier:
mindat:1:2:87131:3
GUID (UUID V4):
0


A former limestone deposit/quarry located in the SE¼SE¼SE¼ sec. 35, T2S, R5W, SBM, 5.3 km (3.3 miles) W of Riverside (city center), S of the W end of the Riverside Municipal Airport, along Arlington Avenue, within the city limits. MRDS database stated accuracy for this location is 100 meters. Product was used as chicken grit, poultry flour.

Mineralization is a sedimentary limestone deposit. The ore body strikes NE and dips 50SE. Material was 90% CaCO3. Local rocks include Quaternary alluvium and marine deposits.

Workings included surface openings comprised of a side cut 100 feet long and 20 feet high.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

List of minerals for each chemical element

Other Databases

Link to USGS MRDS:10064427

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America Plate
Pacific PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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