FMF - Friends of Minerals Forum, discussion and message board

It’s hard to tell, but I’m not seeing actual concentric rings of Quartz, I do see the outer ring of crystal growth but the inner growth seems more randomized. That being said, I have several pieces of ...

Wondering about the crystal formation dynamics involved in Quartz crystals forming into this hexagonal ring formation??? Why do they form these rings in simple terms….. This piece has 7 rings in the ...

OK, thanks everyone for the information it turned out to be an interesting little specimen..

Thanks for the information on the Magma Mine Barite I think that is probably correct. I am in Arizona and the specimen was bought here in Arizona. I looked through the photos and saw a couple that l ...

Hard to tell from just photos. Can you demount it and do a specific gravity?

Have no way to do that kind of test..

Need help in identifying this crystal specimen. Got it many years ago in a small collection I bought. No ID info so I just put it away until now. The crystals about about ½ inch per side. I have ...

Yes, your negative crystal photos look very much like the negative crystals that I have in other crystals I have collected from the same Arizona location.

Not sure if this is the right place for this question but here it is. I ran across a negative crystal in one of the quartz crystals that I collected. I had never seen one before and it took me a whi ...

Here is the enhydro quartz crystal, I have marked the bubble, it does move. About 1 inch in length

I have been doing some field collecting in Arizona recently (prior to the hot weather getting here) and have found a small quartz location that has quite a few "enhydro" quartz crystals. I ...

Author	Message
Topic: Dynamics involved in quartz forming hexagonal rings?
Donn C. Replies: 6 Views: 4885	Forum: Off-Topic and Introductions Posted: Aug 14, 2022 17:07 Subject: Re: Dynamics involved in quartz forming hexagonal rings?
Donn C. Replies: 6 Views: 4885	It’s hard to tell, but I’m not seeing actual concentric rings of Quartz, I do see the outer ring of crystal growth but the inner growth seems more randomized. That being said, I have several pieces of ...
Topic: Dynamics involved in quartz forming hexagonal rings?
Donn C. Replies: 6 Views: 4885	Forum: Off-Topic and Introductions Posted: Aug 14, 2022 13:29 Subject: Dynamics involved in quartz forming hexagonal rings?
Donn C. Replies: 6 Views: 4885	Wondering about the crystal formation dynamics involved in Quartz crystals forming into this hexagonal ring formation??? Why do they form these rings in simple terms….. This piece has 7 rings in the ...
Topic: Unknown crystal
Donn C. Replies: 16 Views: 7826	Forum: What is it? - Where is it from? Posted: Aug 10, 2022 11:23 Subject: Re: Unknown crystal
Donn C. Replies: 16 Views: 7826	OK, thanks everyone for the information it turned out to be an interesting little specimen..
Topic: Unknown crystal
Donn C. Replies: 16 Views: 7826	Forum: What is it? - Where is it from? Posted: Aug 10, 2022 06:29 Subject: Re: Unknown crystal
Donn C. Replies: 16 Views: 7826	Thanks for the information on the Magma Mine Barite I think that is probably correct. I am in Arizona and the specimen was bought here in Arizona. I looked through the photos and saw a couple that l ...
Topic: Unknown crystal
Donn C. Replies: 16 Views: 7826	Forum: What is it? - Where is it from? Posted: Aug 09, 2022 22:14 Subject: Re: Unknown crystal
Donn C. Replies: 16 Views: 7826	Hard to tell from just photos. Can you demount it and do a specific gravity? Have no way to do that kind of test..
Topic: Unknown crystal
Donn C. Replies: 16 Views: 7826	Forum: What is it? - Where is it from? Posted: Aug 09, 2022 20:37 Subject: Unknown crystal
Donn C. Replies: 16 Views: 7826	Need help in identifying this crystal specimen. Got it many years ago in a small collection I bought. No ID info so I just put it away until now. The crystals about about ½ inch per side. I have ...
Topic: Negative crystals and their formation
Donn C. Replies: 7 Views: 10927	Forum: Minerals and Mineralogy Posted: Feb 09, 2017 14:52 Subject: Re: Negative crystals and their formation
Donn C. Replies: 7 Views: 10927	Yes, your negative crystal photos look very much like the negative crystals that I have in other crystals I have collected from the same Arizona location.
Topic: Negative crystals and their formation
Donn C. Replies: 7 Views: 10927	Forum: Minerals and Mineralogy Posted: Feb 09, 2017 11:32 Subject: Negative crystals and their formation
Donn C. Replies: 7 Views: 10927	Not sure if this is the right place for this question but here it is. I ran across a negative crystal in one of the quartz crystals that I collected. I had never seen one before and it took me a whi ...
Topic: Fluid Inclusion "Enhydro" Quartz in Arizona
Donn C. Replies: 5 Views: 8567	Forum: Minerals and Mineralogy Posted: Jul 28, 2014 07:43 Subject: Re: Fluid Inclusion "Enhydro" Quartz in Arizona
Donn C. Replies: 5 Views: 8567	Here is the enhydro quartz crystal, I have marked the bubble, it does move. About 1 inch in length
Topic: Fluid Inclusion "Enhydro" Quartz in Arizona
Donn C. Replies: 5 Views: 8567	Forum: Minerals and Mineralogy Posted: Jul 27, 2014 18:05 Subject: Fluid Inclusion "Enhydro" Quartz in Arizona
Donn C. Replies: 5 Views: 8567	I have been doing some field collecting in Arizona recently (prior to the hot weather getting here) and have found a small quartz location that has quite a few "enhydro" quartz crystals. I ...