Spring 2009
Lab Notes
CUBIC ZIRCONIA Reportedly Coated with Nanocrystalline Synthetic Diamond
DIAMOND
• Assemblages of K-Feldspar, Hematite-Magnetite, and Quartz in Etch Channels
• Clarity Grading Radiation Stains
• Rare Mixed Type (Ia/IIb) Diamond with Nitrogen and Boron Centers
Purplish Pink SPINEL from Tajikistan—Before and After Cutting
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