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Hidden Treasure Mine, Virtue District, Baker Co., Oregon, USA

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Latitude & Longitude (WGS84): 44° 47' 51'' North , 117° 40' 5'' West
Latitude & Longitude (decimal): 44.79771,-117.66807
GeoHash:G#: 9ruqf7htx
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate

Located in Section 10, Township 9 South, Range 41 East, Willamette Meridian.

Quartz vein with antimony minerals in stringers and veinlets within the vein.

Ref: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 15.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

4 valid minerals.

Detailed Mineral List:

Formula: Sb3+Sb5+O4
Reference: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 15.
Formula: Sb2S2O
Reference: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 15.
Formula: Sb2S3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Formula: Sb2O3
Reference: Wagner, Norman S., 1944, Antimony in Oregon, Oregon Department of Geology and Mineral Industries Short Paper 13, page 15.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 4 - Oxides and Hydroxides

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:3

List of minerals for each chemical element

O CervantiteSb3+Sb5+O4
O KermesiteSb2S2O
O ValentiniteSb2O3
S KermesiteSb2S2O
S StibniteSb2S3
Sb CervantiteSb3+Sb5+O4
Sb KermesiteSb2S2O
Sb StibniteSb2S3
Sb ValentiniteSb2O3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Pliocene - Miocene
2.588 - 23.03 Ma

ID: 2845315
Tuffaceous sedimentary rocks and tuff

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Drewsy Formation; Rattlesnake Formation; Dalles Formation; Shutler Formation; Kern Basin Formation; Danforth Formation; Bully Creek Formation; Yonna Formation; Grassy Mountain Basalt; Chalk Butte Formation; Drip Spring Formation; Glenns Ferry Formation

Description: Semiconsolidated to well-consolidated mostly lacustrine tuffaceous sandstone, siltstone, mudstone, concretionary claystone, conglomerate, pumicite, diatomite, air-fall and water-deposited vitric ash, palagonitic tuff and tuff breccia, and fluvial sandstone and conglomerate. Palagonitic tuff and breccia grade laterally into altered and unaltered basalt flows of unit Tob. In places includes layers of fluvial conglomerate and, in parts of the Deschutes-Umatilla Plateau, extensive deposits of fanglomerate composed mostly of Miocene basalt debris and silt. Also includes thin, welded and nonwelded ash-flow tuffs. Vertebrate and plant fossils indicate rocks of unit are mostly of Clarendonian and Hemphillian (late Miocene and Pliocene) age. Potassium-argon ages on interbedded basalt flows and ash-flow tuffs range from about 4 to 10 Ma. Includes the Drewsey Formation of Shotwell and others (1963); sedimentary parts of the Rattlesnake Formation of Brown and Thayer (1966); an interstratified ash-flow tuff has been radiometrically dated by potassium-argon methods at about 6.6 Ma (see Fiebelkorn and others, 1983); Bully Creek Formation of Kittleman and others (1967); Dalles Formation of Newcomb (1966, 1969); Shutler Formation of Hodge (1932), McKay beds of Hogenson (1964) and Newcomb (1966) (see also Shotwell, 1956); Kern Basin Formation of Corcoran and others (1962); Rome beds of Baldwin (1976); parts of the (now obsolete) Danforth Formation of Piper and others (1939), Idaho Group of Malde and Powers (1962), Thousand Creek Beds of Merriam (1910); the Madras (or Deschutes) Formation, the "Simtustus formation" of Smith (1984), and the Yonna Formation (Newcomb, 1958). In areas west of Cascade crest, includes the Sandy River Mudstone and the Troutdale Formation of Trimble (1963) and the lower Pliocene Helvetia Formation of Schlicker and Deacon (1967)

Comments: Also includes Chalk Butte Formation (OR016), Drip Springs Formation (OR023; OR024), sediments of Captain Keeney Pass (OR153), Glenns Ferry Formation (OR154; OR155), and part of the Grassy Mountain Basalt (OR121). In northern half Umatilla River Basin (OR292) Miocene and Pliocene sedimentary rocks include poorly consolidated, thin, but extensive, siltstone, sandstone, and conglomerate locally interbedded with Saddle Mountains Basalt

Lithology: Major:{sandstone,siltstone,mudstone}, Minor:{claystone,rhyolite,diatomite,basalt,conglomerate}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

5.333 - 23.03 Ma

ID: 1471876
Neogene sedimentary rocks

Age: Miocene (5.333 - 23.03 Ma)

Description: Tuffaceous sedimentary rocks; sedimentary rocks; fine grained sediments; sandstone/siltstone

Lithology: Major:: {tuffaceous siltstone, light}; Major:: {tuffaceous sandstone, light} Minor:: {conglomerate}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Jurassic - Triassic
145 - 251.902 Ma

ID: 3192126
Mesozoic sedimentary and volcanic rocks

Age: Mesozoic (145 - 251.902 Ma)

Comments: Blue Mountains

Lithology: Conglomerate,limestone,sandstone,shale,chert

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

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