Home > Laskowski â…¥ – July 29 > MS1916 Coulsonite in Magnetite
Coulsonite in Magnetite
- Buena Vista Hills
- Churchill County
- Nevada
- U.S.A.
- 4.1 × 2.7 × 1.2 cm – Miniature specimen (fits into a 5 cm cube)
Coulsonite is an iron vanadium oxide, and a member of the spinel supergroup (Bosi et al., 2019). Dunn (1937) originally named the mineral after Dr. Arthur L. Coulson (1898-1955), Australian geologist at the Indian Geological Survey. The original description of coulsonite lacked crystallographic information; Radtke (1962) redefined the species as analagous to spinel, and set its neo-type locality to this occurrence in Nevada.
This is a black magnetic mass of coulsonite intergrown with magnetite. The two species are not distinguishable megascopically. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona. This specimen also comes with a label from the A.L. Kidwell collection.
Price: $45
Item code: MS1916
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