Pay in 4 interest-free payments of $12.50 Learn more
Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
CC121 Chrome chalcedony slab
DOT104 Tumble polished Dendritic Opal
Unusual webbing in this piece with small oxidised cubic pyrite inclusions
Approximate dimensions at widest points 145 mm x 75 mm x 55 mm thick
grinding or polishing as the matrix holding the pisolites (small round pebbles) is in many cases quite soft
Polished Marble Bar Chert slab MB112 axinite CC121 Chrome chalcedony slabMB112 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 120 mm x 105 mm x 7 mm thick. Weighs 195 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 of the Earths oldest well preserved sedimentary rocks. From near the town of