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Blue Gem claims (Glenns Peak; Sawtooth Mountains Aquamarine), Boise Basin District, Boise Co., Idaho, USAi
Regional Level Types
Blue Gem claims (Glenns Peak; Sawtooth Mountains Aquamarine)Group of Claims
Boise Basin DistrictMining District
Boise Co.County

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Latitude & Longitude (WGS84):
43° 57' 40'' North , 114° 59' 45'' West
Latitude & Longitude (decimal):
Locality type:
Group of Claims

A Be occurrence/group of claims located in the Sawtooth Wilderness Area (Sawtooth Primitive Area).

Commodities (Major) - Gemstone - Semiprecious; (Trace) - Beryllium
Development Status: Prospect

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Commodity List

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

No minerals currently recorded for this locality.

List of minerals for each chemical element

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

2.588 - 66 Ma

ID: 2111222
Challis magmatic complex, biotite or hornblende-biotite granite

Age: Cenozoic (2.588 - 66 Ma)

Lithology: Major:: {biotite granite}

Reference: Zientek, M.L., P.D. Derkey, R.J. Miller, J.D. Causet et al. Spatial Databases for the Geology of the Northern Rocky Mountains - Idaho, Montana, and Washington. U.S. Geological Survey Open-File Report 2005-1235 Version 1.0. [25]

Lutetian - Ypresian
41.3 - 56 Ma

ID: 2855070
Challis intrusive rocks

Age: Eocene (41.3 - 56 Ma)

Stratigraphic Name: Challis Magmatic Complex

Description: Shallow roots of Challis volcanic field. Older suite of granodiorite and quartz monzodiorite and subordinate diorite, granite, and subvolcanic dacite; includes Jackson Peak, Beaver Creek, Marsh Creek, and Summit Creek stocks (49-45 Ma). Younger suite of granite and minor syenite and subvolcanic rhyolite; includes Sawtooth, Casto, Bungalow, and Lolo Hot Springs plutons (47-43 Ma). (Eocene Challis Magmatic Complex and Related Sedimentary Rocks).

Comments: Original map source: Lewis, Reed S., Link, Paul K., Stanford, Loudon R., and Long, Sean P., Geologic Map of Idaho, 2012, Idaho Geological Survey, Geologic Map 9 (M-9); Scale 1:750,000.

Lithology: Major:{granodiorite,quartz monzodiorite,granite}, Minor:{diorite,hypabyssal dacite,syenite,hypabyssal rhyolite}

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]

66 - 145 Ma

ID: 3192025
Mesozoic intrusive rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Intrusive igneous rocks

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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PATTEE, E.C., 1968, U.S. BUREAU OF MINES RI 7148, P. 75.

USGS MRDS Record:10143750
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