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Gemstones, Minerals & Fossils
Gemstones and Minerals
Qld sapphire formation
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<blockquote data-quote="Dihusky" data-source="post: 609038" data-attributes="member: 10304"><p>Interesting Pat, have to agree with the water, no way can water tumbling wear a Sapphire, the same as it can't wear a Diamond either, both are harder than the material surrounding them in the river. What water tumbling can do is fracture due to rock impact, but that's about it. Movement is more likely associated with Pyroclastic flow and the dense, fine volcanic ash contained within the flow, which will move the Sapphires from the vents as it passes, this then settles as greyish 'The Wash' layer/s we look for.</p></blockquote><p></p>
[QUOTE="Dihusky, post: 609038, member: 10304"] Interesting Pat, have to agree with the water, no way can water tumbling wear a Sapphire, the same as it can't wear a Diamond either, both are harder than the material surrounding them in the river. What water tumbling can do is fracture due to rock impact, but that's about it. Movement is more likely associated with Pyroclastic flow and the dense, fine volcanic ash contained within the flow, which will move the Sapphires from the vents as it passes, this then settles as greyish 'The Wash' layer/s we look for. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Qld sapphire formation
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