Rain

The Rain is a gold and silver mine located in Alaska.

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

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Site Name

Primary: Rain
Secondary: Steeple Mountain

Commodity

Primary: Gold
Primary: Silver
Secondary: Mercury
Secondary: Molybdenum
Secondary: Arsenic
Secondary: Copper

Location

State: Alaska
District: Aleutian Islands

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The volcanic rocks exhibit regional propylitization, localized silicification, and potassium flooding or secondary growth on primary feldspars. Wall rock adjacent to quartz veins has been silicified and pyritized. No argillic alteration has been recognized.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Molybdenite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Randolph and Ellis, 1989

Comment (Deposit): Model Name = Epithermal gold quartz vein?

Comment (Deposit): Other Comments = This site is on land conveyed, patented, or selected by the Aleut Native Corporation.

Comment (Workings): Workings / Exploration = In 1975 the Aleut-Quintana-Duval JV did sampling at this site as a followup of the discovery of numerous color anomalies in the area. Analyses of 18 rock samples indicated metal values of up to 200 ppm copper, 0.05 ppm gold, 36 ppm molybdenum, 2.1ppm silver, and 138 ppm zinc (Christie, 1974). Kennecott mapped and sampled this general area in 1985 (Simpson, 1985). Battle Mountain Exploration in 1989 did detailed sampling and mapping at this site. The sampling (56 rock) gave metal values of up to 67 ppm arsenic, 201 ppb gold, 125 ppb mercury, 34 ppm molybdenum, and 0.8 ppm silver (Randolph and Ellis, 1989).

Comment (Geology): Geologic Description = This site is similar in character to the Wind and Fog prospects (ARDF numbers UK007 and UK008). However, the metal values at this site are considerably lower. The site is marked by a color anomaly about 7,000 by 5,000 feet in extent. Propylitically altered Tertiary andesites overlie an argillite and diorite basement complex. The volcanic rocks exhibit quartz veining and local silicification. The quartz is usually white and contains few visible sulfides. The veins are somewhat enriched in arsenic, copper, mercury, and molybdenum and locally in gold and silver. The highest metal values obtained are: 67 ppm arsenic, 200 ppm copper, 201 ppb gold, 125 ppb mercury, 36 ppm molybdenum, 2.1ppm silver, and 138 ppm zinc (Christie, 1974; Randolph and Ellis, 1989).

Comment (Geology): Age = Late Tertiary or younger.

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Simpson, D.F., 1986, Aleutian Islands project, 1985 final report: Kennecott-Alaska Exploration Company, 54 p. (Report held by the Aleut Native Corporation, Anchorage, Alaska).

Reference (Deposit): Bundtzen, T.K., Swainbank, R.C., Deagen, J.R. and Moore, J.L., 1990, Alaska's mineral industry 1989: Alaska Division of Geological and Geophysical Surveys Special Report 44, 100 p.

Reference (Deposit): Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)

Reference (Deposit): Randolph, D.B., and Ellis, W.T., 1989, Unalaska project, 1989 final report: Battle Mountain Exploration Company, Alaska District, 41 p., 5 appendices, 11 plates, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

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