Petrified wood-Woodworthia with Dendrites

Petrified wood-Woodworthia with Dendrites- Gokwe, Zimbabwe, Africa. 7.25″ across An exceptional example of Woodworthia with deep Emerald green interior from Chromium salts. This slab has top intense color and is loaded with Dendrites and Agate...

Beryl var. Aquamarine

Beryl var. Aquamarine- Reynolds Mine, Royalston, Worcester Co., Massachusetts. 9 cm across Ex. Lardner Vanuxem (1792-1848) # 3047 A magnificent, 19th century example of aquamarine from this classic New England locale. This large specimen hosts several crystals of...