Black Magnetite Jade Slab - Natural Specimen - Sliced Front and Back

c 6 3/8" L x 4 1/4" W at widest point x 5.6mm Thick - USA Specimen. DIY Jade Magnetite Slice/Slab - Strongly Magnetic throughout especially in the more metallic gray areas - Cut from a Natural Rock Formation (You can see the uncut edges in the photos) - Photographed Dry NOT Wet - Much of this Slice will take Gold Plating because of its very adhesive property - From the collection of the GIA Grad, Jewelry Designer Carl Lewis Druckman - Purchased c. 1980s - USA Probably Victorville, California since they are one of the most important producers of Black Jade and Magnetite Black Jade Size: circa 161.8 Grams/809 cts/5.67 ounces - c 6 3/8" L x 4 1/4" W at widest point x 5.6mm Thick Moh's Hardness - 5.5 to 6.5 Magnetite or Jade Magnetite from California is an exceedingly rare material and one of the more unique forms of jade in the world. It is a high-quality black or green jade that contains metallic magnetite.