Mining in Arizona has always been very important. Over 900 different minerals have been discovered in Arizona. Hundreds of towns in Arizona owe their very existence to mining operations. Arizo ...
What is Petrified Wood? - (Post)Recently we bought a very large collection of Petrified Wood mostly self-collected in the Southwest United States from the 1950’s to the 1980’s. Though we have sold a lot of Petrified Woo ...
Ancient Use of Rocks and Minerals in Medicine and Drugs - (Post)Here are some of the many rocks and minerals used for medicinal purposes in the past. This information is presented strictly for fun and education. We do not offer any medical advice, DO NO ...
Mining Towns of Arizona Part 2 Ghost Towns - (Post)In my last two blogs I talked about the history of mining in Arizona and the mining towns still active today. There are a lot of ghost towns in Arizona because of mining activity. ...
Copper Gemstones - (Page)Copper Gemstones are stones that contain either Native Copper or copper minerals. Thirteen metals occur as native elements. Obviously gold and silver are the most well known, but Native ...
Turquoise - (Page)Turquoise is probably one of the most recognized semiprecious gemstones in existence. Turquoise has been popular for cabochons since prehistoric times. It is believed to be one of the first gemsto ...
Chrysocolla - (Page)Chrysocolla is a hydrated copper silicate and is found in the copper oxide zones of major copper deposits. Chrysocolla is usually found with other copper ores, most commonly Malachite. Arizona is ...
Michigan Rock and Minerals - (Page) Michigan has 1,853 records of mining mines according to the U.S.G.S. Lower Michigan is quite level and not much elevated above the Great Lakes, and is underlain by sedimentary deposits of li ...
Montana Rocks and Minerals - (Page) Montana is The Treasure State, fitting for its rocks and minerals. Montana Agate is probably the most well known rock from Montana! Montana Agate comes from near the Yellowstone River in Mon ...
Alaska Rocks and Minerals - (Page)For obvious reasons rockhounding is much harder in Alaska! Much of the ground is frozen or hard to get to. But Alaska does have lots of rocks and minerals including agates, jaspers, and p ...
Texas Rocks and Minerals - (Page)Texas produces a large variety of gemstones, rocks, minerals and fossils. Sandy sediments typical of the coastal plain make up southeastern Texas. Behind this lies the Llano uplift of central Texas ...
Labradorite - (Page)Labradorite has an uninteresting color of dark gray, but displays a beautiful iridescence, giving off rainbow-colored reflections known as labradorescence when light hits it in certain directions.