Cyanotrichite (rare locality specimen)

Item Description

Cyanotrichite is a not found in many localities in the United States, and I think most people would agree that the Grand View Mine in Arizona is most well-known locality for the species. With that said, the second most productive mine would be the Peacock Mine in Lemhi County, Idaho. This piece features minor blue Cyanotrichite associated with deep blue Azurite blades and green Malachite on oxidized matrix. It's honestly more of an Azurite specimen than anything, but the label put Cyanotrichite first, so we're maintaining the integrity. A good sized specimen of this ambiguous material.
N.B.: I couldn't find any info about this mine, but years ago, while doing a bit of research I found a good article from Lanny Ream on his website about how the Peacock Mine is probably NOT the locality for this material, and may have never produced these specimens at all. Today, it's all still labeled as coming from the Peacock Mine, but in the article, Lanny says that he and a friend found specimens of Cyanotrichite, Azurite and Malachite at the Iron Dyke Mine in Stroud Gulch (just east of the Peacock Mine). Lanny states "What is apparently the Peacock Mine, presently shows no mineralization at all. Not one scrap of azurite, cyanotrichite or malachite can be seen on the dumps or workings." Interesting stuff.
From the collection of Geary Murdock.