Talk:Smoky Quartz/@comment-27475916-20160901193901/@comment-5642360-20160904033914

Any metal if ingested too much is toxic.

And bismuth isn't toxic, per se. If you keep the pure metal outside your body that is. Pepto bismol (Bismuth subsalicylate), and other bismuth containing chemicals, are used in pharmaceuticals as ingestible medicine.

And bismuth is weakly radioactive.