Home > Type Localities I – June 9 > MS1089 Loughlinite
Loughlinite - Sold
- Westvaco mine
- Green River Formation
- Sweetwater County
- Wyoming
- U.S.A.
- 4.6 by 3.2 by 2.1 cm – Miniature specimen (fits into a 5 cm cube)
Loughlinite is a hydrated sodium magnesium silicate mineral. Loughlinite forms white fibers normal to the bedding of its shale matrix. Associated here is pearly searlesite, which forms a barrier between the fibrous layers and the shale matrix. Fahey et al. (1960) named this species after Dr. Gerald F. Loughlin (1880-1946), geologist at the United States Geological Survey (U.S.G.S.). Rare stuff!
