A ( 48 X 48 X 8 mm. ) COIN SHAPED ALL NATURAL BRUSH ART JASPER GEMSTONE FROM AUSTRALIA THAT WILL BE MADE INTO A BEAUTIFUL NECKLACE BY HANDCRAFTING A HOOK CLASP ON A BLACK LEATHER CORD WITH YOUR CHOICE OF EITHER 14-KT. ROLLED GOLD OR .925 ( ARGENTIUM ) STERLING SILVER. THIS GEMSTONE WEIGHS 165 CARATS AND HAS A MOHS HARDNESS OF 7