Pilbara Jasper Slab - Black Coffee Spiderweb - Western Australia well-developed definition It has a higher iron

It has a higher iron content

We and our customers have had pretty good luck with our Gamble Bone though

giving this stone its distinctive name

Measurements (inches - longest - approx): 4

and this is likely to be some of the last of this material that will ever be mined

Pilbara Jasper Slab - Black Coffee Spiderweb - Western Australia well-developed definition It has a higher ironPilbara Jasper Slab Black Coffee Spiderweb Pattern Ultra Rare Australian Material Stunning slab of rare Pilbara Jasper from Western Australia featuring gorgeous black coffee patterns with a creamy brown interior. This high grade specimen displays the signature brecciated pattern with jet black backgrounds contrasted by milky white spiderweb formations. The material appears very solid throughout and should make outstanding cabochons with a quality