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CW122 Chinese Writing Stone rough rock
The lime green colouration is caused by the presence of nickel mineralisation
75 mm x 60 mm x 26 mm
Weight is 346 grams
MN136 Magneprase rough rock
Polished Marble Bar Chert MB104 rock blocks CW122 Chinese Writing Stone roughMB104 Marble Bar Chert. Cut and polished on one side with a rough, natural back and a cut base to stand as a display specimen ! Dimensions at widest points approximately 140 mm x 70 mm x 40 mm thick. Weighs 850 grams. Marble Bar chert is a finely banded, iron rich silica rock from the Marble Bar Chert Member (Warrawoona Group) of Western Australia. Formed in shallow Archean seas, it dates to the Paleoarchean (~3. 46 billion years old), making it one
US$ 32.99
US$ 105.00
US$ 35.99
US$ 138.16