2186 Goethite, Quartz (Amethyst), Blue Hills, Agate Creek, Queensland August 27, 2023 Steve Australasia Australia Queensland Golden brown acicular crystals of goethite on amethyst. Width of specimen 13mm. Stack of 150mm. Click on the image below for a higher resolution version.
North and Central Americas Pennsylvania United States 4649 Goethite after pyrite, Mill Lane Farms, Valley Store, East Whiteland Township, Chester Co., Pennsylvania, USA October 5, 2019
Australasia Australia Northern Territory ncat M3034 Amethyst, Hematite, Harts Range, Northern Territory October 14, 2019
Australasia Australia Northern Territory 3378 Quartz (Amethyst), Ilparpa, Alice Springs, Northern Territory October 3, 2019