Mike Breeding

Title: Senior Research Scientist; Manager, Diamond Analytical, Carlsbad, CA

Areas of expertise: diamond defects, treatments and color origin; geochemistry of minerals; gemology and mineralogy of colored stones

Selected Published Research

• The “Type” Classification System of Diamonds and its Importance in Gemology. Gems & Gemology (2009)
• Occurrence of the Si–V defect center in natural colorless gem diamonds. Diamond and Related Materials (2008) 
• Slab-derived fluids and quartz-vein formation in an accretionary prism, Otago Schist, New Zealand. Geology (2002)
• Fluid–metasedimentary rock interactions in subduction-zone mélange: implications for the chemical composition of arc magmas. Geology (2004)
• Visible Absorption Spectra of Colored Diamonds. Gems & Gemology (2015)

Education

• Bachelor of science in geology, College of William and Mary, Williamsburg, Virginia, 1998
• Ph.D in geology, Yale University, New Haven, Connecticut, 2004
• Graduate Gemologist, GIA, Carlsbad, California, 2005

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