Rare Michigan Copper Fire Brick Slice

Rare Michigan Copper Fire Brick SliceThis is a slab of firebrick from the old smelters in Michigan measuring 6 long x 3 wide x 1 8 thick. The brick absorbed the metal during the smelting process and some were saved prior to being permanently buried after the decommissioning of the smelters. This is a rare piece of history and it is very suitable to be displayed as a part of history or cabbed into beautiful jewelry. These slabs are polished on one side and clear coated to keep it shiny.

A nice fully polished half of a thunder egg with nice dark agate

It weighs approximately 17

It is over 4” long on a piece of matrix that is approximately 6” x 4” x 3/4”  shipping and packaging is included in the price

This specimen is approximately 2-1/4” long on a nice piece of matrix that is approximately 5”x3” and is 1/2” thick

This item will ship in a USPS medium flat rate box

It is from the Richardson’s Ranch in Central Oregon and is approximately 2-3/4” x 2-1/2”

It has the characteristic green with dark tan swirls giving it the appearance of a planet

It is fully polished and weighs approximately 6

They evolved from sea life from the time being encased in a nodule and this initiated the formation of a septarian nodule

It has beautiful small druzy crystals with outstanding flow patterns and stalactites inside making this one an outstanding specimen

Oregon in a rock quarry

This is a collection of cut and polished agates and jasper