Gemstones - 1000pc Jigsaw Puzzle by Eurographics

Of the approximately 4,000 discovered minerals, each with their own characteristic chemical composition, highly ordered atomic structure, and specific physical properties, 40 of the most well known are illustrated. These include gold, diamond, sulphur, copper and quartz.
1000-Piece Puzzle
Finished Puzzle Size: 19.25" x 26.5".

Eurographics puzzles are made according to high standards; 100% recyclable materials, non-toxic and vegetable based inks, 0.07" blueboard for exact piece fit without fraying, and certified by the Forest Stewardship Council.