by sysadmin | May 13, 2016 | Blog
Petrified Tree Fern- Northeast Arizona. 9.5″ x 4″ The vivid yellow/gold color in this specimen comes from Uranium. Seldom seen material.
by sysadmin | May 12, 2016 | Blog
Fossil Ginkgo leaves- Sentinel Butte Formation, Morton County, North Dakota. Paleocene – 59 Mya. 9″ across large leaf is 9 cm x 8 cm ; small leaf is 4 cm x 3.5 cm
by sysadmin | May 11, 2016 | Blog
Coconino Lava River Cave- Coconino National Forest, near Flagstaff, Arizona. This mile-long lava tube cave was formed roughly 675,000 years ago by molten rock that erupted from a volcanic vent in nearby Hart Prairie. The top, sides and bottom of the flow cooled and...
by sysadmin | May 10, 2016 | Blog
Azurite nodule with Malachite- Blue Ball Mine, 3 miles south of Miami, Gila County, Arizona. Two halves of a hollow azurite nodule filled with fine, hair-like crystals of green malachite. 3.5 cm across each.
by sysadmin | May 9, 2016 | Blog
Agate House-petrified wood- Petrified Forest National Park Holbrook, Arizona Ancestral Puebloan people used petrified wood for a variety of purposes including tools such as projectile points, knives, and scrapers. Agate House demonstrates another innovative use of...
by sysadmin | May 8, 2016 | Blog
Malachite Stalactite slice- Mashamba West Mine, Kolwezi District, Katanga Province, D.R. Congo. 3.75″ across
