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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone Identification Please
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<blockquote data-quote="Whisp" data-source="post: 571587" data-attributes="member: 9598"><p>Curious to know why ruby would cut differently to sapphire if they are both hardness 9 and both are Al2O3.</p></blockquote><p></p>
[QUOTE="Whisp, post: 571587, member: 9598"] Curious to know why ruby would cut differently to sapphire if they are both hardness 9 and both are Al2O3. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone Identification Please
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