• 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

2,235 questions

3,905 answers


109,440 users

Is Greenish Yellow Colored Citrine Heat Treated Smoky Quartz?

0 votes
Hello, my question pertains to Citrine, and if a greenish yellow color denotes that the crystal is heat treated smoky quartz? I am unable to find information specifically regarding the color change that occurs when smoky quartz is heated.
asked Jun 16, 2019 by Youngcollector (120 points)

1 Answer

0 votes
Many unscrupulous dealers sell amethyst which has been heat treated as citrine. Citrine is rare, very rare.

So let's set the record straight, amethyst is purple Quartz. Smoky Quartz can be heat treated also. My reading suggests heat treated amethyst is what most dealers sell as citrine. A reputable dealer will tell you. I am looking for references to heat treated smoky wuartz and will update this if I find anything significant.


So, after a review of some of the available data, smoky Quartz is also heat treated to form a citrine colored  stone.The smoky Quartz I have collected has the smoky black/green in it already. And, While the coloration in Citrine may be due to heat treating not all stones are the same, so my answer is some smoky Quartz has the green hue in it. That is the color you get when you mix black and yellow. The color of the stone may indicate smoky quartz but it is not necessarily definitive.
answered Jun 22, 2019 by Weasel (58,940 points)

Related questions

0 votes
0 answers
0 votes
2 answers
+1 vote
1 answer
asked Dec 30, 2017 by arachne1 (130 points)
0 votes
2 answers
asked Oct 23, 2017 by DivineComedian (120 points)