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

It has a higher iron content

Measurements (inches - longest - approx): 4

giving this stone its distinctive name

Biggs comes in multiple varieties

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