FMF - Friends of Minerals Forum, discussion and message board

Thanks for the correction Alfredo. I was going by the ID associated with an image I had seen on FMF.

Is there any analytical work that explains the occasional blue, green, or blue/green coloration of cookeite? More specifically the blue and green cookeite found at this locality:
Stand-on-Your-Head ...

How rare are emerald/aquamarines from Pakistan? Looks very unusual.

Whoops, I replied under the image of the wrong specimen. :( Good catch.

Is the mineral on the top termination mica or rutile?

Thanks to everyone who has replied.

I have not been using distilled tap water so I think I will start doing that and then not use the gun for long periods of time. In the past I have not used the ...

Thanks. Now that I think about it I have let the gun get warm and used it for about an hour straight.

Hello everyone. I have owned two water guns. I used the first water gun for about 30 hours of operation and it just stopped working. The water gun made the usual noise but no water would come out ...

Thanks, the gold is growing on me. I have another one that is all black so I thought there was something wrong with this one. Now I realize they are both good.

These pictures are not very good, but the color and luster are true. I decided to included two pictures because the the problems I had with the focus on the different parts of the specimen.

I have several goethites from the Crystal Peak area of Colorado. Overall they have a good, metallic luster and look very black. However there are some spots I would describe as rusty looking or almo ...

I understand Krohnkite is easily dissolved by water. Does this mean it should be stored in an air-tight container? I live in a area (north Texas) where the humidity would be best described as aver ...

What is the best type of glue to use for attaching a thumbnail mineral specimen to the foam liner at the bottom of a perky box? Is mineral tack preferred by some? Thanks.

Jordi, Alfredo, Pete,

Thanks for you advice. I will leave it alone.

David

I have a specimen from Blanchard New Mexico that contains fluorite, a little Baryte and some circular areas of what appear to be malachite. There are also some iron stains. How can I get the iron st ...

Author	Message
Topic: Cause of Blue, Green and Blue/Green Coloration of Cookeite
daviddillman Replies: 4 Views: 9669	Forum: Minerals and Mineralogy Posted: May 03, 2017 09:12 Subject: Re: Cause of Blue, Green and Blue/Green Coloration of Cookeite
daviddillman Replies: 4 Views: 9669	Thanks for the correction Alfredo. I was going by the ID associated with an image I had seen on FMF.
Topic: Cause of Blue, Green and Blue/Green Coloration of Cookeite
daviddillman Replies: 4 Views: 9669	Forum: Minerals and Mineralogy Posted: Apr 28, 2017 08:16 Subject: Cause of Blue, Green and Blue/Green Coloration of Cookeite
daviddillman Replies: 4 Views: 9669	Is there any analytical work that explains the occasional blue, green, or blue/green coloration of cookeite? More specifically the blue and green cookeite found at this locality: Stand-on-Your-Head ...
Topic: Favourite Beryls?
daviddillman Replies: 15 Views: 31640	Forum: Favourite Minerals Posted: Jan 08, 2017 17:23 Subject: Re: Favourite Beryls?
daviddillman Replies: 15 Views: 31640	How rare are emerald/aquamarines from Pakistan? Looks very unusual.
Topic: Don Lum Collection
daviddillman Replies: 2247 Views: 2639959	Forum: Collection photos and Collector's page Posted: Jan 03, 2017 23:13 Subject: Re: Don Lum Collection
daviddillman Replies: 2247 Views: 2639959	Whoops, I replied under the image of the wrong specimen. :( Good catch.
Topic: Don Lum Collection
daviddillman Replies: 2247 Views: 2639959	Forum: Collection photos and Collector's page Posted: Jan 03, 2017 21:49 Subject: Re: Don Lum Collection
daviddillman Replies: 2247 Views: 2639959	Is the mineral on the top termination mica or rutile?
Topic: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 29, 2016 21:06 Subject: Re: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Thanks to everyone who has replied. I have not been using distilled tap water so I think I will start doing that and then not use the gun for long periods of time. In the past I have not used the ...
Topic: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 28, 2016 17:16 Subject: Re: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Thanks. Now that I think about it I have let the gun get warm and used it for about an hour straight.
Topic: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 28, 2016 15:27 Subject: Unreliable Water Guns?
daviddillman Replies: 14 Views: 36862	Hello everyone. I have owned two water guns. I used the first water gun for about 30 hours of operation and it just stopped working. The water gun made the usual noise but no water would come out ...
Topic: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	Forum: Conserving, Preparing and Cleaning Minerals Posted: May 10, 2015 12:50 Subject: Re: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	Thanks, the gold is growing on me. I have another one that is all black so I thought there was something wrong with this one. Now I realize they are both good.
Topic: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	Forum: Conserving, Preparing and Cleaning Minerals Posted: May 10, 2015 11:50 Subject: Re: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	These pictures are not very good, but the color and luster are true. I decided to included two pictures because the the problems I had with the focus on the different parts of the specimen.
Topic: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	Forum: Conserving, Preparing and Cleaning Minerals Posted: May 09, 2015 17:28 Subject: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster
daviddillman Replies: 13 Views: 29655	I have several goethites from the Crystal Peak area of Colorado. Overall they have a good, metallic luster and look very black. However there are some spots I would describe as rusty looking or almo ...
Topic: Storage of Krohnkite ?
daviddillman Replies: 5 Views: 12758	Forum: Conserving, Preparing and Cleaning Minerals Posted: May 09, 2015 16:16 Subject: Storage of Krohnkite ?
daviddillman Replies: 5 Views: 12758	I understand Krohnkite is easily dissolved by water. Does this mean it should be stored in an air-tight container? I live in a area (north Texas) where the humidity would be best described as aver ...
Topic: Attaching Thumbnails - Choice of glue
daviddillman Replies: 1 Views: 6510	Forum: Off-Topic and Introductions Posted: May 07, 2015 02:49 Subject: Attaching Thumbnails - Choice of glue
daviddillman Replies: 1 Views: 6510	What is the best type of glue to use for attaching a thumbnail mineral specimen to the foam liner at the bottom of a perky box? Is mineral tack preferred by some? Thanks.
Topic: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite
daviddillman Replies: 5 Views: 13456	Forum: Conserving, Preparing and Cleaning Minerals Posted: Apr 22, 2015 09:33 Subject: Re: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite
daviddillman Replies: 5 Views: 13456	Jordi, Alfredo, Pete, Thanks for you advice. I will leave it alone. David
Topic: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite
daviddillman Replies: 5 Views: 13456	Forum: Conserving, Preparing and Cleaning Minerals Posted: Apr 21, 2015 19:36 Subject: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite
daviddillman Replies: 5 Views: 13456	I have a specimen from Blanchard New Mexico that contains fluorite, a little Baryte and some circular areas of what appear to be malachite. There are also some iron stains. How can I get the iron st ...