Petrified wood with boring holes- "Teredo wood"

Petrified wood with boring holes- “Teredo wood” Volga RIver, Village of Gorodishche, Ulyanovsk, Russia. Cretaceous period 110 mya. 15.25″x 9.25″ … A fantastic rip cut slab of “Teredo” bored wood with Pyrite filling all the...

Cerussite

Cerussite- Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia 8.2 x 5.6 x 4.6 cm. This specimen came out of Irv Brown’s noted Tsumeb collection. Cerussite is a lead carbonate mineral, usually found in the oxidized zone of lead ore deposits. Due...

Petrified tree fern-Calamites

Petrified tree fern-Calamites- Shoal Creek Mine, Blue Creek Seam, 1500 foot depth, Adger, Alabama. Carboniferous period – 359.2 Mya – 299.0 Mya. 14″ x 8″ Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern...