4649 Goethite after pyrite, Mill Lane Farms, Valley Store, East Whiteland Township, Chester Co., Pennsylvania, USA

October 5, 2019 Pendleton North and Central Americas Pennsylvania United States

Single crystal pseudomorph of goethite after pyrite.

Chile South America

0428 Molybdofornacite, Wulfenite, Chrysocolla, Dulcinea de Llampos Mine, Cachiyuyo de Llampos district, Copiapo Province, Atacama Region, Chile

October 17, 2023

2609 Thaumasite, Schellkopf, Brenk, Eifel, Germany

October 3, 2019

Cornwall England United Kingdom

5018 Sphalerite, Wheal Charlotte, Perranuthnoe, Cornwall, England

September 29, 2019

Australasia Australia Queensland

2179 Phurcalite, Torbernite, Monokoff Deposit, Cloncurry, Queensland

September 22, 2019