Author:
Chisholm J. E.,Jones G. C.,Purvis O. W.
Abstract
AbstractVivid blue inclusions in white whewellite or weddellite, occurring within the medulla of four lichen species growing on copper-bearing rocks, have been identified as the hydrated copper oxalate, moolooite, CuC2O4. nH2O (n ∼ 0.4–0.7), by infrared spectroscopy and X-ray powder diffraction. The mineral is believed to have been formed by reaction between oxalic acid secreted by the lichen and ground or surface water containing copper.
Subject
Geochemistry and Petrology
Cited by
109 articles.
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