Last Chance Prospect

Occurrence in Alaska, United States with commodity Mica

Geologic information

Identification information

Deposit ID 10001643
MRDS ID A012414
Record type Site
Current site name Last Chance Prospect

Geographic coordinates

Geographic coordinates: -130.70033, 54.76531 (WGS84)
Location accuracy 2000(meters)
Relative position SITKLAN PASSAGE
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS OFR 78-73B, LOC. 180 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Mica Primary

Materials information

Materials Type of material
Mica Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -130.70033, 54.76531

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012414

Bibliographic references

  • Deposit

    USGS OFR 78-73B, LOC. 180

  • Deposit

    USGS BULL 1024-G, P. 141, 143, 154-156, 159-161

  • Deposit

    USBM IC 8125, P. 44

  • Other Database

    BAG-OFR-78-73B-180

General comments

Subject category Comment text
Deposit PEGMATITE LESS THAN 1 M THICK CONTAINS MICA IN THIN BOOKS 4-5 CM IN DIAMETER; DEPOSIT IS SMALL AND MICA IS OF POOR QUALITY
Deposit SEE ALSO: HYDER MICA ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 02-SEP-1994 Mosier, Dan U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.