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<p>[QUOTE=&quot;kyratango, post: 1659287, member: 5006&quot;]There surely are tests... With professional gemmologist equipment<img src="styles/default/xenforo/smilies/biggrin.png" class="mceSmilie" alt=":D" unselectable="on" /></p><p>For us, amateurs collectors<img src="styles/default/xenforo/smilies/wink.png" class="mceSmilie" alt=";)" unselectable="on" /> we have to go with scratch tests to situe stones on the Mohs scale, and MOSTLY (for me at least!) with my guts and feeling from the hue and internal structure (if visible...).</p><p>The more identified stones you handled in person the more feelings you have<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie58" alt=":joyful:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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