by sysadmin | Mar 15, 2016 | Blog
Limb cast – Yellow Cat Flat, Morrison Formation, Ringtail Mine, Yellowcat Mining District, Grand Co. Utah. 11″ across. Collected in the early 1950’s
by sysadmin | Feb 24, 2016 | Blog
Limb Cast with Amethyst and Agate- China. 13.75″ across. Limb Casts are created when agate is deposited in cavities formed by tree branches covered by volcanic ash. The wood burns away after being covered by the hot ash. Under the right conditions agate fills...
