Posted inGemstones Semi-Precious Gemstones Tourmaline
Red Tourmaline (Rubellite): Color, Value, and Buying Guide
Red tourmaline is sold under the trade name rubellite. The best stones are a vivid, medium-to-dark red or…
Posted inGemstones Buying Guides Learn
Indicolite Tourmaline: Blue Color and Buying Guide
Indicolite is the trade name for blue tourmaline. It is a color variety of tourmaline, not a separate…
Posted inGemstones Buying Guides Learn
Maine Tourmaline: History, Colors, and Jewelry Guide
Maine tourmaline is gem tourmaline from pegmatite pockets in western and southern Maine, where tourmaline is the state…
Posted inGemstones Buying Guides Learn
Green Tourmaline: Color, Value, and How to Buy
Green tourmaline is a durable gemstone, with a hardness of 7 to 7.5, that gem dealers call verdelite…