There are two varieties. One is used as an edible grain but the one I have growing is used as a bead. The beauty of it is that the seeds have a hard outer capsule with a tiny filament through the middle. Yo pull it out and have a ready made bead with a hole to thread through already there.
When they are dry the seeds are all sorts of shades from whit through grey to black. Some have a really cool antiqued mottled look.
About nine years ago Peace and I both did Permaculture design courses. We picked some Jobe's tears from a Permaculture garden we visited. Peace made me a bracelet. Last year I found some of the unused seeds/beads still in the craft box so on a whim I planted them in the garden. I didn't expect the seeds to be viable after all this time but they were. We only got a few beads last year- enough for Mr T to make himself a bracelet. I planted a few of lat years seed and this year they have grown really well. (Maybe because of all the rain we've had.)
Soon we will be able to do some crafting again!
I had to include this photo of the puppy trying to be so good with the new baby chick. She was sitting so nicely but was barely containibg her excitement...have to keep an eye on her she could swallow it in one curious lick!