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⇱ Cucamonga Mine (Cucamonga Zinc Mine; Blew Jordam Mine), Cucamonga Peak, Lytle Creek District, San Bernardino County, California, USA

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Cucamonga Mine (Cucamonga Zinc Mine; Blew Jordam Mine), Cucamonga Peak, Lytle Creek District, San Bernardino County, California, USAi
Regional Level Types
Cucamonga Mine (Cucamonga Zinc Mine; Blew Jordam Mine)Mine
Cucamonga PeakPeak
Lytle Creek DistrictMining District
San Bernardino CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
34° 13' 48'' North , 117° 33' 18'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Lytle Creek701 (2011)6.0km
San Antonio Heights3,371 (2011)12.5km
Rancho Cucamonga175,236 (2017)14.2km
Wrightwood4,525 (2011)16.2km
Upland76,443 (2017)17.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Orange Belt Mineralogical SocietySan Bernardino, California28km
Valley Prospectors, Inc.San Bernardino, California28km
West End Prospectors CorporationNorco, California33km
Victor Valley Gem and Mineral ClubVictorville, California42km
Monrovia Rock Hounds Inc.Monrovia, California42km
Mindat Locality ID:
88378
Long-form identifier:
mindat:1:2:88378:9
GUID (UUID V4):
0


A former Cd-Zn-Pb-Ag occurrence/mine located in sec. 30, T2N, R6W, SBM, 2.9 km (1.8 miles) ENE of Cucamonga Peak (coordinates of record), in the headwaters area of a N-flowing tributary of the Middle Fork Lytle Creek, N of the headwaters area of the South Fork, Lytle Creek, W of Scotland. MRDS database stated accuracy for this location is 10 meters.

NOTE: USGS MRDS database file #10034037 presents geographic coordinates of 34.22864, -116.19834 for this locality. This is in obvious error. The T&R data presented in that same file is also in error, consistent with the coordinates error.

Mineralization is a replacement deposit hosted in granite and limestone. The ore body strike N20W and dip 70E at a thickness of 9.14 meters and a length of 304.8 meters. Limestone strikes northward and dips steeply eastward. It is a contact deposit in a 30 foot tactite zone of garnet-epidote rock. Local rocks include pre-Cenozoic metasedimentary and metavolcanic rocks undivided.

Workings include surface and underground openings comprised of open cuts and trenches and 1 adit at the S end.

Channel samples taken through widths of 5 to 6 feet have assayed at 3.2% to 13.1% Zn, from a trace to 3.6% Pb and 0.3 to 6.65 ounces Ag per ton.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


4 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Entries shown in red are rocks recorded for this region.

Detailed Mineral List:

ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: Occurs in tactite skarn.
ⓘ Galena
Formula: PbS
ⓘ Galena var. Silver-bearing Galena
Formula: PbS with Ag
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
Description: Occurs in tactite skarn.
ⓘ Greenockite
Formula: CdS
Description: Occurs as coatings on sphalerite.
ⓘ Sphalerite
Formula: ZnS
ⓘ Sphalerite var. Marmatite
Formula: (Zn,Fe)S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘvar. Marmatite2.CB.05a(Zn,Fe)S
ⓘGreenockite2.CB.45CdS
ⓘGalena2.CD.10PbS
ⓘvar. Silver-bearing Galena2.CD.10PbS with Ag
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OOxygen
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Garnet GroupX3Z2(SiO4)3
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ GalenaPbS
Sⓘ GreenockiteCdS
Sⓘ SphaleriteZnS
Sⓘ Sphalerite var. Marmatite(Zn,Fe)S
Sⓘ Galena var. Silver-bearing GalenaPbS with Ag
CaCalcium
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Sphalerite var. Marmatite(Zn,Fe)S
ZnZinc
Znⓘ SphaleriteZnS
Znⓘ Sphalerite var. Marmatite(Zn,Fe)S
AgSilver
Agⓘ Galena var. Silver-bearing GalenaPbS with Ag
CdCadmium
Cdⓘ GreenockiteCdS
PbLead
Pbⓘ GalenaPbS
Pbⓘ Galena var. Silver-bearing GalenaPbS with Ag

Other Databases

Link to USGS MRDS:10034037

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America Plate
Pacific PlateTectonic Plate
USA

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References

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