Rainbow #2 Prospect

The Rainbow #2 Prospect is a beryllium mine located in Juab county, Utah at an elevation of 4,931 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Rainbow #2 Prospect

Commodity

Primary: Beryllium
Tertiary: Uranium
Tertiary: Lithium
Tertiary: Fluorine-Fluorite

Location

State: Utah
County: Juab
District: Spor Mtn-Thomas Range

Land Status

Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1960
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Thomas Mountains - Tintic Mountains

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Spor Mtn Is An Up-Lifted Fault Block That Has Been Lifted Trap-Door Fashion With Hinge On East.

Type: L
Description: A North Trending Fault System That Cuts Spor Mtn, Including The Thomas Caldera Ring Fracture

Alterations

Alteration Type: L
Alteration Text: Argillic: Smectite, Sericite, K-Feldspar

Rocks

Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Miocene

Analytical Data

Analytical Data: 1963 SAMPLES CONTAIN 0.23 - 1.1 % BE. NODULES IN THE TUFF CONTAIN AS MUCH AS 3.3 % BE. FLUORITE CONTENT IS LESS THAN 15 %.

Materials

Ore: Uranophane
Ore: Bertrandite
Gangue: Fluorite

Comments

Comment (Location): SECTION SUBDIVISIONS SE 1/4 SE 1/4 NW 1/4

Comment (Production): PRODUCTION FIGURES UNKNOWN

Comment (Workings): A SMALL ADIT CONTAINING WATER.

Comment (Geology): THE TUFF CONTAINS FRAGMENTS OF VOLCANIC ROCK, CHERT AND CLAY. ; GEOL.DESC: FLUORITE HAS REPLACED TUFF

Comment (Commodity): CHIEF IMPURITIES ARE MONTMORILLONITE, CREAM COLORED DOLOMITE & QUARTZ

References

Reference (Deposit): STAATZ, M H, 1963, GEOL OF MIN DEP IN THOMAS RANGE: USGS BULL 1142-M

Reference (Deposit): STAATZ, M H, & GRIFFITTS, W R, 1961, BE BEARING TUFF IN THOMAS RANGE: ECON GEOL V 56, NO 5

Reference (Deposit): STAATZ, M H, & OSTERWALD, F W, 1959, GEOL OF THOMAS RANGE FLUOR DISTRICT: USGS BULL 1069

Reference (Deposit): 1959 RECON STAATZ, USGS BULL 1069

Reference (Production): EVERTS, M L, 1980, ON SITE INVESTIGATION: UTAH GEOL AND MIN SUR

Reference (Deposit): 1964 RECON STAATZ, USGS PP 415

Reference (Deposit): 1979 GEOLMAP LINDSEY, D A, USGS MAP-I-1176

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