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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
Dimensions 130 mm x 80 mm x 50 mm thick
CC121 Chrome chalcedony slab
grinding or polishing as the matrix holding the pisolites (small round pebbles) is in many cases quite soft
Unusual webbing in this piece with small oxidised cubic pyrite inclusions
DOT104 Tumble polished Dendritic Opal
Polished Marble Bar Chert slab MB112 axinite Dimensions 130 mm x 80MB112 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
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