We have spent many summers digging dinosaur
The Green River Fossil Formation - (Post)The Green River Fossil Formation is one of the best known and most prolific fossil locations in the U.S. About 55 million years ago, during the Eocene period, the Rocky Mountains were formed. At that
Montana Agate - (Page)Montana Agate comes from near the Yellowstone River in Montana. The vein actually runs from the Yellowstone National Park in Wyoming to North Dakota. Montana Agate is one of the alluvial agates, it...
Turritella Agate - (Page)Turritella Agate is a brown stone with naturally occurring seashell fossils. These seashells are turreted, cone shaped shells exhibiting long slender whorls with spiral ribbing. Turritella...
Rhyolite - (Page)Rhyolite is an extrusive igneous rock formed as a deposit of volcanic ash. The ash becomes rock after being exposed to extreme heat and pressure. Iron oxide stains create the beautiful patterns...
Dendritic Agate - (Page)Dendritic Agates have very thin tree-like inclusions of iron, manganese, or other metallic oxides that grow in natural fractures. These inclusions called dendrites were named after the Greek word...
South Dakota Rocks and Minerals - (Page)The Black Hills, South Dakota is one of the top 5 places in the U.S. for rocks and minerals. In addition to agate and rose quartz, there are more than 40 other minerals found here: including copper,...
The Colors of Petrified Wood - (Post)The colors in Petrified Wood come from minerals present during formation. Petrified Wood may retain the details of the original wood, but often the bright colors are not common in the actual wood and
Colorado Rocks and Minerals - (Page)Colorado, like most western states, has produced gold, copper, and silver. Gold was discovered in 1859 and the most productive gold mine in Colorado, the Cresson Mine, produced more than 258,000...
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 co
Petrified Woods - (Page) Lapidary Clubs - (Post)Due to covid and the influx of live shows on social media, more and more people are getting into rocks and minerals. That’s great for those of us who make a living mining and selling rocks and mineral