UNDER CONSTRUCTION (links to the below categories coming soon…).
Alum
Antimony
Ashes
Asphaltum
Azurite
Basalt
Cave
Charcoal
Clay
Copper
Earth
Emerald
Flint / Chert
Garnet
Granite
Gypsum
Igneous rocks
Jasper
Kaolinite
Lime
Marl
Metal
Mica
Mud
Obsidian
Ochre
Orpiment / Arsenic
Pearl
Pyrite
Quartz
Quartzite
Salt
Sand
Sandstone
Schist
Serpentine
Shell
Smoke
Soapstone
Soot
Specularite
Stone
Turquoise
Water