North Stevens County barite

Region West, Northwest
Mineral systems
Deposit types
Critical minerals
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Focus area outlines a 20-km-long belt of barite prospects in northern Stevens County extending south from the Flagstaff Mountain deposit.
Identified resources Identified resources and historical production of barite.
Production No current production.
Status Past mining.
Estimated resources Iron Cap prospect: Probably contains thousands of tons with one assay at 49.9% BaSO4. Jacobson mine: estimated 800 tons of Measured and Indicated ore and 2,000 tons of Inferred ore.
Geologic maps Joseph (1990b), scale 1:100,000; Yates (1971), scale 1:31,680.
Geophysical data Inadequate Rank 3 to 4 aeromagnetic and Rank 4 aeroradiometric coverage.
Favorable rocks and structures Argillite overlain by basalt.
Deposits Flagstaff Mountain (MRDS dep_id: 10204711), Iron Cap prospect (MRDS dep_id: 10131990, Oman (MRDS dep_id: 10228964), Bruce Creek (MRDS dep_id: 10180897), Uribe, Williams Lake, Van Stone, Martin, Jacobsen mine.
Evidence from mineral occurrences MRDS; Moen (1963).
Geochemical evidence No data.
Geophysical evidence Unknown.
Evidence from other sources None.
Cover thickness and description Exposed at the surface.
Authors Daniel W. Eungard, Jane M. Hammarstrom.
New data needs Geologic mapping, geochemistry.
Geologic mapping and modeling needs Existing mapping at sufficient resolution, however no details provided to help understand local structures controlling fluid movement.
Geophysical survey and modeling needs Not applicable to barite deposits.
Digital elevation data needs Lidar complete.