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Search found 30 matches |
Author | Message |
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Topic: Cause of Blue, Green and Blue/Green Coloration of Cookeite | |
daviddillman Replies: 4 Views: 7744 |
Forum: Minerals and Mineralogy Posted: May 03, 2017 09:12 Subject: Re: Cause of Blue, Green and Blue/Green Coloration of Cookeite |
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: 7744 |
Forum: Minerals and Mineralogy Posted: Apr 28, 2017 08:16 Subject: Cause of Blue, Green and Blue/Green Coloration of Cookeite |
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 ... |
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Topic: Favourite Beryls? | |
daviddillman Replies: 15 Views: 25337 |
Forum: Favourite Minerals Posted: Jan 08, 2017 17:23 Subject: Re: Favourite Beryls? |
How rare are emerald/aquamarines from Pakistan? Looks very unusual. | |
Topic: Don Lum Collection | |
daviddillman Replies: 2188 Views: 2168983 |
Forum: Collection photos and Collector's page Posted: Jan 03, 2017 23:13 Subject: Re: Don Lum Collection |
Whoops, I replied under the image of the wrong specimen. :( Good catch. | |
Topic: Don Lum Collection | |
daviddillman Replies: 2188 Views: 2168983 |
Forum: Collection photos and Collector's page Posted: Jan 03, 2017 21:49 Subject: Re: Don Lum Collection |
Is the mineral on the top termination mica or rutile? | |
Topic: Unreliable Water Guns? | |
daviddillman Replies: 14 Views: 27639 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 29, 2016 21:06 Subject: Re: Unreliable Water Guns? |
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 ... |
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Topic: Unreliable Water Guns? | |
daviddillman Replies: 14 Views: 27639 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 28, 2016 17:16 Subject: Re: Unreliable Water Guns? |
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: 27639 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 28, 2016 15:27 Subject: Unreliable Water Guns? |
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: 24946 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: May 10, 2015 12:50 Subject: Re: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster |
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: 24946 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: May 10, 2015 11:50 Subject: Re: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster |
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: 24946 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: May 09, 2015 17:28 Subject: Cleaning "Rusty" spots off Goethite With Otherwise Good Luster |
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: 11264 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: May 09, 2015 16:16 Subject: Storage of Krohnkite ? |
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: 5713 |
Forum: Off-Topic and Introductions Posted: May 07, 2015 02:49 Subject: Attaching Thumbnails - Choice of glue |
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: 11956 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Apr 22, 2015 09:33 Subject: Re: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite |
Jordi, Alfredo, Pete,
Thanks for you advice. I will leave it alone. David |
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Topic: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite | |
daviddillman Replies: 5 Views: 11956 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Apr 21, 2015 19:36 Subject: Cleaning Iron Stains off Blanchard New Mexico Specimen with Malachite |
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 ... | |
Topic: Munich Show (Mineralientage) 2014 | |
daviddillman Replies: 80 Views: 175920 |
Forum: News about Shows Posted: Nov 06, 2014 23:05 Subject: Re: Munich Show (Mineralientage) 2014 |
Did anyone get photos of the ". . . new blue Albites with Microcline and smoky Quartz from somewhere in China.." that Jordi mentioned. I did not see any in the thread. Thanks. | |
Topic: Any Tips for Collecting in Green Ridge Pegmatite Area, Grand Co. Colorado? | |
daviddillman Replies: 2 Views: 7115 |
Forum: Mines and Mineral Localities Posted: Jun 07, 2014 19:06 Subject: Re: Any Tips for Collecting in Green Ridge Pegmatite Area, Grand Co. Colorado? |
Mark,
Thanks for the info. David |
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Topic: Any Tips for Collecting in Green Ridge Pegmatite Area, Grand Co. Colorado? | |
daviddillman Replies: 2 Views: 7115 |
Forum: Mines and Mineral Localities Posted: Jun 02, 2014 21:04 Subject: Any Tips for Collecting in Green Ridge Pegmatite Area, Grand Co. Colorado? |
I am planning to do some rock hounding in Colorado during a summer vacation. I am trying to narrow down the many possible spots to just a few close to where I will be staying. I found a description of ... | |
Topic: How to remove iron stains? | |
daviddillman Replies: 24 Views: 68423 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Nov 15, 2013 17:03 Subject: Re: How to remove iron stains? |
Thanks to everyone who suggested the Super Iron Out. It took several baths in the solution but the results were very good.
David |
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Topic: How to remove iron stains? | |
daviddillman Replies: 24 Views: 68423 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 06, 2013 21:54 Subject: Re: How to remove iron stains from wavellite? |
Thanks! | |
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