39 puzzles tagged minerals

Natrolite (image by Didier Descouens)
Citrine (image by cobalt123)
Tourmaline (image by Rob Lavinsky)
Beryl (image by Rob Lavinsky)
Rubellite (image by Hannes Grobe)
Amethyst (by Rob Lavinsky)
Chalcedon (image by Elya)
Agat
Pink quartz (image by Rob Lavinsky)
spectrii
Crystals, Minerals
Minerals
tumbled
Bismuth crystal
☺ Colorful...
Tumblestones
Tumbled stones
Chunks of large Petrified Trees, AZ
*♥Pamukkale, Turkey, terraces of carbonate minerals♥*
Gems
Mineral collection
Fluorescent Minerals
Fluorescent minerals
Made by nature