Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
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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West of Acton, Acton, Acton Mining District, Los Angeles County, California, USAi
Regional Level Types
West of Acton- not defined -
Acton- not defined -
Acton Mining DistrictMining District
Los Angeles CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
34° North , 118° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~18km
GRN:
N24W69
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
211187
Long-form identifier:
mindat:1:2:211187:5
GUID (UUID V4):
0


A zeolite occurrence located ¼ mile W of Acton.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


Gallery:

List of minerals arranged by Strunz 10th Edition classification

Unclassified
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
OOxygen
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
AlAluminium
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

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

Murdock, Joseph, Webb, Robert W. (1938) Notes on some minerals from southern California. American Mineralogist, 23 (5) 349-355
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 219, 352
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