Olympic Peninsula Manganese
Melrose JW. 1940. Olympic Peninsula Manganese. Division of Mines and Mining. Olympia, WA
From the Introduction: "For the purpose of obtaining more complete information on the occurrrences of certain minerals, their extent and quality, especially strategic and critical minerals, the Department of Conservation and Development and the Department of Public Lands, sponsored a state-wide mineral investigations project, conducted by Work Projects Administration. A major undertaking under the project was investigation of manganese deposits on the Olympic Peninsula. It was the desire to determine, so far as it was possible to do so, the extent and quality of the ores in the manganese zone extending around the north, east, and south sides of the Olympic Mountains. ... The manganese deposits on the Olympic Peninsula have atracted much attention for many years. The predominant manganese ore consists mainly of the mineral bementite, a silicate of manganese with lesser amounts of manganese carbonate and manganese oxide. Sufficient manganese oxide occurred at the Crescent mine to be extracted and shipped in substantial amounts."
- Type
- Unpublished Report
- Authors
- Melrose, J
- Date of Issue
- 1940-12
- Publisher
- Division of Mines and Mining
- Units
- OLYM
- Keywords
- Geology, manganese, Mineral, Mining