A general guide for using the Forum with some rules and tips
The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
|
Search found 6 matches |
Author | Message |
---|---|
Topic: Can someone clarify what 'adularia' is? - What is meant by 'variety'? | |
Bill Carson Replies: 20 Views: 48215 |
Forum: Minerals and Mineralogy Posted: Oct 28, 2010 11:36 Subject: Re: Can someone clarify what 'adularia' is? - What is meant by 'variety'? |
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: 28735 |
Forum: Minerals and Mineralogy Posted: Sep 15, 2010 14:55 Subject: Re: Feldspar staining methods |
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: 28735 |
Forum: Minerals and Mineralogy Posted: Sep 15, 2010 13:42 Subject: Re: Feldspar staining methods |
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: 28735 |
Forum: Minerals and Mineralogy Posted: Sep 15, 2010 12:04 Subject: Re: Feldspar staining methods |
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: 28735 |
Forum: Minerals and Mineralogy Posted: Sep 15, 2010 11:43 Subject: Re: Feldspar staining methods |
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: 28735 |
Forum: Minerals and Mineralogy Posted: Sep 15, 2010 11:13 Subject: Feldspar staining methods |
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 ... | |
All times are GMT - 5 Hours |