High-quality tabular crystals of peach-orange and strawberry-rose morganite
up to 12 x 10 x 7,5 cm in size are found in the Mesa Grande pegmatite field. These Cretaceous pegmatites are spatially and genetically related to the Mesozoic Southern California batholith.
Ref: E.Ya. Kievlenko, Geology of gems, 2003, p. 112
Gemstones from Himalaya Mine (Himalaya dikes; Himalaya pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA by Colour
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