10045 Quartz, Ojuela Mine, Mapimi, Mun. de Mapimí, Durango, Mexico October 5, 2019 Steve Mexico North and Central Americas Cluster of doubly-terminated quartz crystals with unknown black minerals. Purchased at Keystone, priced at $12.
North and Central Americas United States Virginia 1311 Calcite, Quartz, Haymarket Quarry, Haymarket, Virginia, USA September 22, 2019
Australasia Australia Queensland 0514 Malachite, Quartz, Great Australia Mine, Cloncurry, Queensland September 20, 2019
New Mexico North and Central Americas United States 3962 Quartz after Fluorite, Blackknife Mine, Sierra Co., New Mexico, USA October 3, 2019
Australasia Australia South Australia 5156 Barite, Hentschelite, Malachite, Quartz, Spring Creek Copper Mine, South Australia September 29, 2019