Mineralpedia Details for Macquartite
Named after the French chemist Louis Charles Henri Macquart who brought the Russian specimens of crocoite from which chromium was discovered to France. Macquartite is found in only one locality at the Mammoth-St. Anthony mine in Tiger, Arizona in the United States. It occurs on museum specimens from an oxidized lead-copper-zinc orebody.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/macquartite.pdf
Macquartite from Mammoth mine, Tiger, Pinal Co., Arizona, United States
Yellow acicular sprays to 0.75mm. Joe Ruiz collection.