Mummified wood
Mummified wood are fossils of wood that have not permineralized. They are formed when trees are buried rapidly in dry cold or hot environments. They are valued in paleobotany because they retain original cells and tissues capable of being examined with the same techniques used with extant plants i
Bezoardicum (bezoar of) is a term used in alchemy and other practices
Bezoardicum (bezoar of) is a term applied to multiple substances used in alchemy and other practices. Bezoardicum joviale, or bezoar of Jupiter, is a regulus made by melting three ounces of regulus of antimony and two of block tin. This is then powde