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Hill-Johnson prospect, Freds Mountain Mining District, Washoe County, Nevada, USAi
Regional Level Types
Hill-Johnson prospectProspect
Freds Mountain Mining DistrictMining District
Washoe CountyCounty
NevadaState
USACountry

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Latitude & Longitude (WGS84):
39° 44' 26'' North , 119° 50' 27'' West
Latitude & Longitude (decimal):
39.74072,-119.84101
GeoHash:
G#: 9r4f0fw6q
GRN:
N27W67
Type:
Prospect
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Lemmon Valley5,040 (2011)11.6km
Cold Springs8,544 (2011)13.4km
Golden Valley1,556 (2011)14.0km
Spanish Springs15,064 (2011)15.3km
Sun Valley19,299 (2011)17.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Comstock Gold ProspectorsReno, Nevada24km
Reno Gem and Mineral SocietyReno, Nevada24km
Mindat Locality ID:
43337
Long-form identifier:
mindat:1:2:43337:1
GUID (UUID V4):
0


Southern end of Freds Mountain
Geology: Blue molybdenum oxide stains, presumably ilsemannite, occur on quartz stringers forming a 1 to 2 foot wide zone in schist. The zone strikes northerly and has a gentle west dip. It can be traced for several hundred feet. The schist is metamorphosed dacite volcanic rock occurring as a small pendant within granitic rocks of Late Mesozoic age.

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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!

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘIlsemannite4.FJ.15Mo3O8 · nH2O
Group 9 - Silicates
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ IlsemanniteMo3O8 · nH2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
Oⓘ IlsemanniteMo3O8 · nH2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
NaSodium
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MoMolybdenum
Moⓘ IlsemanniteMo3O8 · nH2O

Other Databases

Link to USGS MRDS:10055073

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Schilling, an Inventory of Molybdennum Occurrences, NBMG Report #2, (1962), P. 39-40.
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