howie516: Copper, Calcite
Singingstone48: 4222 Plesiobaena turtle
Thomas Appéré: Possible calcium sulphate rich rocks - Curiosity, sol 4202
Lilian Alizert: Incendies sur Nouméa / Smoke from Noumea riots
pxlsnfr: Marquise Diamond Ring
Leland Green: accurate Basil Wolverton style drawing of bald old man, with long hairs in ears, nose, on eyebrows and neck, with whiskers-U4
Thomas Appéré: Landing on the Moon - Odysseus, 22 February 2024
howie516: BARITE
Retrotech: A Very Powerful Spark From my Bonetti (Sectorless Wimshurst) Electrostatic Generator
howie516: Azurite and Malachite
rabinal: maths of electromagnetism
howie516: Copper #2
זיידע‎ ישעיה טשערויין: Growler, break-off piece of an Iceberg, St John's, Newfoundland, July 1991 0480 Retouched August 5, 2023, Scanned Photograph, 1-2 full
Chickenhawk72: The Stare
howie516: PYRITE CRYSTALS
Lilian Alizert: Garniérite
Lilian Alizert: Manganite sur hématite
Lilian Alizert: Rhodochrosite
Lilian Alizert: Rhodochrosite
micro mineral: Brookita
Singingstone48: 7250 Fluorite May Stone and Sand Quarry Fort Wayne IN Cat No 5666
זיידע‎ ישעיה טשערויין: Lila Sporting her favorite Blanket, Park Ridge, Illinois, November 19, 2022 1 full
The^Bob: Photographing one of the Keck mirror segments
colinbm: 2022 10 09 70mm 222nm FP000687-Sharpen web text
Thomas Appéré: Europa - Juno, Perijove 45
Gem Images: ADOPTED!
Lilian Alizert: Hématite irisée sur quartz (Turgite ?)