Is it quartz or quartzite? What is the difference between a rock and a mineral? Or between a gem and a mineral?
Just how old is that fossil? Find out from the experts what minerals, rocks or fossils are hiding in your collection.
The first monday of every month is your chance to talk with experts and find out what hidden "gems" you have found.
Offered by a partnership between the the New Mexico Museum of Natural History and Science and the Albuquerque Gem and Mineral Club.
Free with museum admission