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Lepidolite rough rock
Desert Sunset is a banded iron formation that is comprised of alternating layers of red and yellow jasper and chert with narrow bands of black hematite
Dimensions at widest points approximately 140 mm x 75 mm x 8
Dimensions at widest points approximately 140 mm x 110 mm x 75 mm thick
Approximate weight of each piece is between 68 and 180 grams
Polished Marble Bar Chert MB109 beryl Lepidolite rough rockMB109 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 140 mm x 60 mm x 45 mm thick. Weighs 718 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