• Register

Information for users from the old Q&A site
If you have an account from our old Q&A site, your account was transferred over, but you need to reset your password and confirm your email address.
Reset Password here
Confirm Email here

1,995 questions

3,449 answers


12,568 users

Was synthetic blue topaz made as early as 1922?

0 votes
asked Sep 2, 2016 by shankba (140 points)

1 Answer

0 votes
Imitation maybe but synthetic I cannot find a reference.
answered Sep 3, 2016 by Weasel (48,310 points)

Related questions