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According to my Dana Manual of Mineralogy,: "Some adularia shows an opalescent play of colors and is called moonstone.

While all the Kspars would stain the same, I am more interested in just testing for the presence of any adularia, which as far as I know is the only feldspar to form under epithermal conditions.

I ...

Since the vein material I am looking at is low temperature (epithermal), I am hoping that the only Kspar present would be adularia or buddingtonite. While the use of UV intrigues me, I worry that som ...

Don't laugh, but I did put a sample under one of those cheap black light bulbs you can buy at a hardware store! Of course it did nothing because the wavelengths are wrong.

I may look into UV light ...

Thanks. I had run across ammonium bifluoride as a possible substitute for hydrofluoric acid, but have yet to find a description of its use for staining feldspars. I will look into a bit deeper.

I ...

I want to attempt to identify any adularia that may be present in quartz vein material and have read that the usual method is to stain the adularia. But, most of the methods I have found require the ...

Author	Message
Topic: Can someone clarify what 'adularia' is? - What is meant by 'variety'?
Bill Carson Replies: 20 Views: 56822	Forum: Minerals and Mineralogy Posted: Oct 28, 2010 11:36 Subject: Re: Can someone clarify what 'adularia' is? - What is meant by 'variety'?
Bill Carson Replies: 20 Views: 56822	According to my Dana Manual of Mineralogy,: "Some adularia shows an opalescent play of colors and is called moonstone.
Topic: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Forum: Minerals and Mineralogy Posted: Sep 15, 2010 14:55 Subject: Re: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	While all the Kspars would stain the same, I am more interested in just testing for the presence of any adularia, which as far as I know is the only feldspar to form under epithermal conditions. I ...
Topic: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Forum: Minerals and Mineralogy Posted: Sep 15, 2010 13:42 Subject: Re: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Since the vein material I am looking at is low temperature (epithermal), I am hoping that the only Kspar present would be adularia or buddingtonite. While the use of UV intrigues me, I worry that som ...
Topic: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Forum: Minerals and Mineralogy Posted: Sep 15, 2010 12:04 Subject: Re: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Don't laugh, but I did put a sample under one of those cheap black light bulbs you can buy at a hardware store! Of course it did nothing because the wavelengths are wrong. I may look into UV light ...
Topic: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Forum: Minerals and Mineralogy Posted: Sep 15, 2010 11:43 Subject: Re: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Thanks. I had run across ammonium bifluoride as a possible substitute for hydrofluoric acid, but have yet to find a description of its use for staining feldspars. I will look into a bit deeper. I ...
Topic: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	Forum: Minerals and Mineralogy Posted: Sep 15, 2010 11:13 Subject: Feldspar staining methods
Bill Carson Replies: 13 Views: 39956	I want to attempt to identify any adularia that may be present in quartz vein material and have read that the usual method is to stain the adularia. But, most of the methods I have found require the ...