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Very rare fossil stromatolite slab polished on one side
More information about Brecciated Mookaite
Dimensions at widest points approximately 115 mm x 100 mm x 18 mm thick
15 - 20 mm across
Polished Green Opal rock GREEN76 stripey jasper Very rare fossil stromatolite slabGREEN76 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 130 mm x 130 mm x 50 mm thick Weighs 1,238 grams Green Opal occurs at a location south of Kalgoorlie in the Eastern Goldfields of Western Australia. The green colouration is caused by traces of nickel and or chromium. Sometimes it exhibits striking contrasting veins of magnesite.
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