Home > Laskowski Ⅵ – July 29 > MS1916 Coulsonite in Magnetite

Coulsonite in Magnetite

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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