Psilomelane Marcasite Plume Agate! Lapidary Stone Slab! Septarian Nodule or rainbow

or rainbow

This material also goes by the name of Death Valley Jasper

Each one in this is a high potential cutter rough chunk

They make great displays just as they are

Psilomelane Marcasite Plume Agate! Lapidary Stone Slab! Septarian Nodule or rainbowHere is a stunning slab of Psilomelane Marcasite Plume Agate, which is a form of agate and metal! This creates metallic plumes within the agate, for some very awesome highly attractive pattern! This material does have some soft spots, and may need treated to cab! Measurements (inches longest approx): 3. 6 x 2. 6 x . 23The last photo has been taken dry so that you may see any defects. The other photos have been taken wet to simulate a polish.