by sysadmin | Feb 4, 2016 | Blog
Diamond in Conglomerate- Formosa River, Bahia, Brazil. From the collection of Dr. R W M Woodside. Old specimen label #450 Specimen is 10 cm across, Diamond is 5mm across
by sysadmin | Feb 1, 2016 | Blog
Petrified Arborescent Horsetail-Calamites Arthropithys- Northern Tocantins Petrified Forest, State of Tocantins, Brazil. Permian period 6.25″ across. Horsetails (sphenopsids) are closely related to ferns.