5.8" Polished Jasper Slab - Brennan, Oregon

This is a 5.8" wide slab of jasper that was collected near Brenna, Oregon. It has been polished to a glossy-finish on one side by one of the top polishers out there. It doesn't have any of the tool marks or scuffing that might be left by lesser quality polishers. Comes with an acrylic display stand.

Jasper is a term that can be applied to an opaque variety of chalcedony (light does not pass through it). The opaqueness is due to a higher concentration of impurities mixed with silica/quartz. Like agate it may form in a wide variety of colors, and is often multi-colored. In most cases, jasper will occur when silica-rich fluids permeate throughout a soft sediment or volcanic debris deposit. The fluids then crystallize around the particles/impurities, resulting in a cementation process. Most often, the impurities present determine the coloration of the deposit following solidification, however other factors can play a role in the color of what is now considered a jasper.
SOLD
DETAILS
SPECIES
Chalcedony var. Jasper
LOCATION
Near Brennan, Oregon
SIZE
5.8 x 2.7", .2" thick
CATEGORY
ITEM
#184909