Pyrolusite on quartz
Copper Photo Copyright © Maggie Wilson - This image is copyrighted. Unauthorized reproduction prohibited. Locality: Mamainse Point Copper Area, Algoma District, Ontario, Canada 2.5 x 1.5 x 1.5 cm What is interesting about this specimen is that this is how Reiner found it. In other words, it has not been etched in acid.
Minerals: Native Elements Gold, Silver, Diamond...
Hewettite, Gold Quarry Mine, Maggie Creek District, Eureka Co., Nevada, USA. Fov 3 mm. Copyright: Stephan Wolfsried
rocks and minerals
Alunite, KAl3(SO4)2(OH)6, Tambo Mine, El Indio deposit, Elqui Province, Coquimbo Region, Chile. Size 2.5 x 2.0 x 1.0 cm. Copyright © Maggie Wilson