Benitoite
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- AN UPDATE on COLOR in GEMS. PART 2: COLORS INVOLVING MULTIPLE ATOMS and COLOR CENTERS by Emmunuel Fritsch and George R
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- Neptunite Kna2li(Fe ; Mn ; Mg)2Ti2si8o24 C 2001 Mineral Data Publishing, Version 1.2 ° Crystal Data: Monoclinic
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- Benitoite 11 California State Gem
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