Home > Laskowski Ⅳ – July 13 > MS1872 Hagendorfite

Hagendorfite - Sold

Hagendorfite is an anhydrous sodium manganese iron phosphate, and a member of the alluadite group (Hatert, 2019). Strunz (1954) described the mineral as hornblende-like, and named the species for its type locality at Hagendorf. Redhammer et al. (1995) performed a detailed study of hagendorfite, including determination of iron valence. Like most anhydrous phosphates in granitic pegmatites, hagendorfite is a primary mineral. Alteration of hagendorfite and other phosphates led to incredible mineral diversity at Hagendorf, currently boasting 25 type species.

This is a hand sample of green-black hagendorfite and red-brown wolfeite, both in quartz. Red hematite staining illustrates the initialization of oxidation processes. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.