0842 LUDWIGITE, Brosso Mine, Calea, Lessolo, Canavese District, Torino Province, Piedmont, Italy September 28, 2019 Steve Europe Italy Source B.Woodward, 1980
Canada North & Central Americas 6260 HORVATHITE-(Y), Poudrette Quarry, Mont St. Hilaire, La Vallee-duRichelieu RCM, Monteregio, Quebec, Canada September 28, 2019
California North & Central Americas United States 4011 CRISTOBALITE, Coso Hot Springs Deposit, Coso District, Coso Mtns., Inyo County, California, U.S.A. September 28, 2019
Australasia Australia South Australia 3067 QUARTZ var. Chrysophrase, Mt. Davies, Musgrave Ranges, South Aust., Australia September 28, 2019