![Crystals under Polarized Light thumbnail](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/afterimages/11nov_06.jpg?t=638430686684271997)
Crystals under Polarized Light
Emodin, an orange-red crystalline substance, obtained from rhubarb, melted with allobarbital (50x) using polarized light.--Published in OPN November 2006
Lars Bech, Naarden, The Netherlands
Emodin, an orange-red crystalline substance, obtained from rhubarb, melted with allobarbital (50x) using polarized light.--Published in OPN November 2006
Lars Bech, Naarden, The Netherlands