Learn about Tourmaline
diverse mineral group famed for rainbow colors and elongated prisms; prized for color variety, rarity, and strong collector appeal.Tourmaline from Tourmaline Queen Mine, USA
from Tourmaline Queen Mine: thick, lustrous crystals; rubellite-red to indicolite-blue interiors; iconic blue-cap varieties and collecting appeal.Tourmaline Queen Mine
A collector's guide to Tourmaline Queen Mine, USA: its geology, mining history and notable minerals, illustrated with the 144 specimens documented from this locality on EarthWonders.
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