Quartz, fluorite, calcite, pyrite, malachite, azurite, gypsum, halite, galena and native sulfur. Examine documented mineral specimens through their colors, faces and textures. An editorial selection, not a value ranking; a photograph does not replace mineral identification. Visuals are real Wikimedia Commons photographs, not AI-generated images. Narration is synthesized with Edge TTS. Photographs are resized and fitted to a portrait frame; derived images retain their source licenses. Quartz: Didier Descouens; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Quartz_Br%C3%A9sil.jpg Fluorite: CarlesMillan; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:3192M-fluorite1.jpg Calcite: Rob Lavinsky, iRocks.com; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Calcite-20188.jpg Pyrite: Ivar Leidus; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Pyrite_-_Huanzala_mine%2C_Huallanca%2C_Bolognesi%2C_Ancash%2C_Peru.jpg Malachite: JJ Harrison ( https://www.jjharrison.com.au/ ); CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Malachite%2C_Zaire.jpg Azurite: Ivar Leidus; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Azurite_-_New_Nevada_Lode%2C_La_Sal%2C_Utah%2C_USA.jpg Gypsum: Didier Descouens; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Gypse_Caresse.jpg Halite: Lech Darski; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Halit_%28NaCl%29_-_Kopalnia_soli_Wieliczka%2C_Polska.jpg Galena: Ivar Leidus; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Galena_-_Huallanca%2C_Bologesi%2C_Ancash%2C_Peru.jpg Native sulfur: Ivar Leidus; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Sulfur_-_El_Desierto_mine%2C_San_Pablo_de_Napa%2C_Daniel_Campos_Province%2C_Potos%C3%AD%2C_Bolivia.jpg