Home > Type Localities II – August 5 > MS1620 Mansfieldite
Mansfieldite - Sold
- Hobart Butte
- Cottage Grove
- Lane County
- Oregon
- U.S.A.
- 4.3 by 3.8 by 1.4 cm – Miniature specimen (fits into a 5 cm cube)
Mansfieldite is a hydrous aluminum arsenate, specifically the aluminum analog of scorodite. Allen et al. (1948) named the species after Dr. George Rogers Mansfield (1875-1947), U.S. Geological Survey.
Mansfieldite forms a botryoidal crust, admixed with scorodite. Interesting Oregon material. This specimen was part of the Charles Trantham (1936-2020) estate. A handwritten label accompanying the specimen gives collecting date 1963.
