Smithsonian Handbook of Gemstones Graveyard Point Plume Agate unless otherwise noted

unless otherwise noted

The bottom of the specimen holds a space where a calcite crystal was growing

Pictured dry

hand polished

slightly domed on both sides

Smithsonian Handbook of Gemstones Graveyard Point Plume Agate unless otherwise notedBy Cally Hall From the back cover: Published in association with America's preeminent authority, the Smithsonian Institution. DK's Smithsonian Handbook of Gemstones is packed with more than 800 vivid full color photographs of more than 130 varieties of cut and uncut stones, organic gemstones, and precious metals. With authoritative text, clear photography, and a systematic approach, this concise guide to identification enables you to recognize each