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8 Cards in this Set
- Front
- Back
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Conchoidal Fracture
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curved & ridged, from surface inward
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Crazing
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tiny fractures when opal loses H2O
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Findings
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small components to make or repair jewelry
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Shank
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part of ring that encircles finger
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Steam Cleaner
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high-pressure steam
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Take-in
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procedure for receiving jewelry for repair, appraisal, cleaning
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Thermal Shock
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sudden extreme temperature changes
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Ultrasonic Cleaner
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high-frequency sound waves in liquid solution
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