US$ 159.00
Dimensions at widest points approximately 115 mm x 55 mm x 30 mm thick
Porphyry is a general term that is used rather loosely for igneous rocks which contain relatively large isolated crystals set in a fine-grained groundmass
It weighs 440 grams
Each polished face approximately 95mm x 30mm x 30 mm thick
Weighs 935 grams
Azurite Sun AZ134 petrified wood Dimensions at widest points approximatelyAZ134 Azurite sun mineral specimen. Dimensions at widest points for entire specimen approx. 100 mm x 100 mm x 35 mm thick. Weight is 446 grams. The matrix that this copper based mineral forms on is kaolinite. From Malbunka copper mine in Northern Territory, Australia.