Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Spencer, Clark County, Idaho, USAi
Regional Level Types
Spencer- not defined -
Clark CountyCounty
IdahoState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
06770520017272061639185.jpg
Survey of Opal Mining Claims near Spencer, Idaho

Spencer, Clark County, Idaho, USA
00116640017272061644683.jpg
Deer Hunt Spencer Opal Mine Survey

Spencer Opal Mine, Spencer, Clark County, Idaho, USA
09230070017271982369022.jpg
Opal Mountain Mine Survey

Opal Mountain Mine, Spencer, Clark County, Idaho, USA
06770520017272061639185.jpg
Survey of Opal Mining Claims near Spencer, Idaho

Spencer, Clark County, Idaho, USA
00116640017272061644683.jpg
Deer Hunt Spencer Opal Mine Survey

Spencer Opal Mine, Spencer, Clark County, Idaho, USA
09548990017272061654613.jpg
Opal Mountain Mine Survey

Opal Mountain Mine, Spencer, Clark County, Idaho, USA
06770520017272061639185.jpg
Survey of Opal Mining Claims near Spencer, Idaho

Spencer, Clark County, Idaho, USA
00116640017272061644683.jpg
Deer Hunt Spencer Opal Mine Survey

Spencer Opal Mine, Spencer, Clark County, Idaho, USA
Latitude & Longitude (WGS84):
44° North , 112° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~66km
GRN:
N30W59
Köppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
31094
Long-form identifier:
mindat:1:2:31094:6
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

8 valid minerals.

Rock Types Recorded

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

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Alunite
Formula: KAl3(SO4)2(OH)6
ⓘ Anhydrite
Formula: CaSO4
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
ⓘ Hematite
Formula: Fe2O3
ⓘ Marcasite
Formula: FeS2
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Opal var. Opal-A
Formula: SiO2 · nH2O
ⓘ Opal var. Opal-CT
Formula: SiO2 · nH2O
ⓘ Opal var. Pinfire Opal
Formula: SiO2 · nH2O
ⓘ Opal var. Precious Opal
Formula: SiO2 · nH2O
ⓘ Opal var. Quinzite Opal
Formula: SiO2 · nH2O
ⓘ Palygorskite
Formula: ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
ⓘ 'Phyllosilicate'
ⓘ 'Pink Opal'
ⓘ Pyrite
Formula: FeS2

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘOpal4.DA.10SiO2 · nH2O
ⓘvar. Precious Opal4.DA.10SiO2 · nH2O
ⓘvar. Pinfire Opal4.DA.10SiO2 · nH2O
ⓘvar. Quinzite Opal4.DA.10SiO2 · nH2O
ⓘvar. Opal-CT4.DA.10SiO2 · nH2O
ⓘvar. Opal-A4.DA.10SiO2 · nH2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘAlunite7.BC.10KAl3(SO4)2(OH)6
Group 9 - Silicates
ⓘPalygorskite9.EE.20◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Unclassified
ⓘ'Pink Opal'-
ⓘ'Phyllosilicate'-

List of minerals for each chemical element

HHydrogen
Hⓘ AluniteKAl3(SO4)2(OH)6
Hⓘ OpalSiO2 · nH2O
Hⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Hⓘ Opal var. Precious OpalSiO2 · nH2O
Hⓘ Opal var. Pinfire OpalSiO2 · nH2O
Hⓘ Opal var. Quinzite OpalSiO2 · nH2O
Hⓘ Opal var. Opal-CTSiO2 · nH2O
Hⓘ Opal var. Opal-ASiO2 · nH2O
OOxygen
Oⓘ AluniteKAl3(SO4)2(OH)6
Oⓘ AnhydriteCaSO4
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ HematiteFe2O3
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ OpalSiO2 · nH2O
Oⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Oⓘ Opal var. Precious OpalSiO2 · nH2O
Oⓘ Opal var. Pinfire OpalSiO2 · nH2O
Oⓘ Opal var. Quinzite OpalSiO2 · nH2O
Oⓘ Opal var. Opal-CTSiO2 · nH2O
Oⓘ Opal var. Opal-ASiO2 · nH2O
NaSodium
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mgⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
AlAluminium
Alⓘ AluniteKAl3(SO4)2(OH)6
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ OpalSiO2 · nH2O
Siⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Siⓘ Opal var. Precious OpalSiO2 · nH2O
Siⓘ Opal var. Pinfire OpalSiO2 · nH2O
Siⓘ Opal var. Quinzite OpalSiO2 · nH2O
Siⓘ Opal var. Opal-CTSiO2 · nH2O
Siⓘ Opal var. Opal-ASiO2 · nH2O
SSulfur
Sⓘ AluniteKAl3(SO4)2(OH)6
Sⓘ AnhydriteCaSO4
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
KPotassium
Kⓘ AluniteKAl3(SO4)2(OH)6
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
FeIron
Feⓘ HematiteFe2O3
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2

Localities in this Region

USA

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.
Quick NavTopCommoditiesMineral ListRock TypesLocalities in RegionOther Regions
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 22, 2026 05:56:11 Page updated: September 23, 2025 08:34:16
Go to top of page