Spring 1991 G&G Lab Notes

Inscribed Alexandrite

Chalcedony "Turquoise" Color

Highly Conductive Blue Diamond

"Emerald" with Unusual Color Zoning

More Banded Lapis Lazuli

Moonstone and Iolite Beads

Pearls from Baja California

Uncommon Cultured Pearls

Period Jewelry

Synthetic Ruby "Manufactured" Mineral Specimen

Flux Grown Ruby

Diffused Star Sapphire Update

Synthetic Sapphire with Triangular Inclusions

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