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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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 Posted: Jan 02, 2015 23:51 Post subject: Re: Mineral Display Case Project. |
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The SW missouri piece is one I tried to gather more information on. Efforts to contact Marvin Ellis who traded for the piece in Tucson (sometime in the early 90s) were unsuccessful. It's supposedly one of 10-12 in existence. It's the most gemmy calcite I've ever seen. The Gallatin piece is pretty big (6 inches). The rough and cut Benchmark Quarry pair are original Bill Hladysz material (about 25 years old).
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Vitaliy
Joined: 30 Nov 2014
Posts: 52
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| Posted: Jan 02, 2015 23:53 Post subject: Re: Mineral Display Case Project. |
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That's a nice assemblage of Calcite from various states. I personally like the pieces from Elmwood Mine and Sweetwater Mine especially when they have an association. However personally I would choose a Dalnegorsk Calcite or a Canadian Calcite such as those from Inverhuron or from Southern Ontario Quarries.
What is the sizes of the specimens displayed?
Also for the labels did you fold half of it to create a support or rest for them? It is hard to tell from the photographs.
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 02, 2015 23:55 Post subject: Re: Mineral Display Case Project. |
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This Sweetwater piece is 1973 Gary Hansen. The Picher piece is a bit of a joke since the top crystal is just glued on there from somewhere else. At least it was cheap.
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 03, 2015 00:01 Post subject: Re: Mineral Display Case Project. |
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| All the specimens are cabinet to large cabinet sized. The width of the case is 46 inches for reference. The labels are just folded paper. They aren't supporting anything. I put either felt feet or custom plaster bases under a lot of the specimens. I painted the plaster the at least match the matrix color for some of them.
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 03, 2015 00:16 Post subject: Re: Mineral Display Case Project. |
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A few full case pictures to top it off.
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Vitaliy
Joined: 30 Nov 2014
Posts: 52
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| Posted: Jan 03, 2015 01:30 Post subject: Re: Mineral Display Case Project. |
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| Ed you can post up to 10 images per post rather than three per post. I was wondering if you could tell me what kind of camera and perhaps lighting you use to take photographs of your specimens?
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Jan 03, 2015 04:02 Post subject: Re: Mineral Display Case Project. |
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This display looks simply great, a wonderful presentation of your calcite collection!!!
Tobi
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 03, 2015 10:31 Post subject: Re: Mineral Display Case Project. |
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| Vitaliy wrote: | | Ed you can post up to 10 images per post rather than three per post. I was wondering if you could tell me what kind of camera and perhaps lighting you use to take photographs of your specimens? |
The lighting in the photos is just the case lighting which is 5050 color temperature LED strips. 69 LEDs per shelf. The camera I used is a Nikon D7100 with no special adjustments on the settings for these photos.
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 03, 2015 10:31 Post subject: Re: Mineral Display Case Project. |
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| Tobi wrote: | This display looks simply great, a wonderful presentation of your calcite collection!!!
Tobi |
Thanks, Tobi.
Ed
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rfarrar
Joined: 04 Mar 2012
Posts: 5
Location: South Dakota
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| Posted: Jan 03, 2015 17:01 Post subject: Re: Mineral Display Case Project. |
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Nice looking cabinet and display. You have some great calcites. I would be concerned that the Homestake Mine calcite might be mis-labelled. I know of no calcites of this habit from the Homestake Mine, Lawrence Co., SD in the SDSM&T collection or the Black Hills Institute collection. What is the matrix? Most of those from the Homestake have a little phyllite or cummingtonite- gruenerite schist on the back. Homestake Mining Corporation has (had) mines in many states, most referred to locally as the Homestake Mine. Perhaps this one got attributed to the wrong state somewhere along the line.
Bob
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 03, 2015 17:22 Post subject: Re: Mineral Display Case Project. |
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| rfarrar wrote: | Nice looking cabinet and display. You have some great calcites. I would be concerned that the Homestake Mine calcite might be mis-labelled. I know of no calcites of this habit from the Homestake Mine, Lawrence Co., SD in the SDSM&T collection or the Black Hills Institute collection. What is the matrix? Most of those from the Homestake have a little phyllite or cummingtonite- gruenerite schist on the back. Homestake Mining Corporation has (had) mines in many states, most referred to locally as the Homestake Mine. Perhaps this one got attributed to the wrong state somewhere along the line.
Bob |
Hi,
You would know SD material better than me. It appears to have been acid dipped. The crystal edges are rounded aggressively. I've attached pictures of the matrix. Looks like it could be chert?
Ed
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rfarrar
Joined: 04 Mar 2012
Posts: 5
Location: South Dakota
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| Posted: Jan 03, 2015 19:01 Post subject: Re: Mineral Display Case Project |
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Ed,
The SD Homestake is a preCambrian metamorphic deposit. Perhaps this came from a Homestake owned mine in the Tri-State or New Lead Belt of Missouri.
Bob
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2256
Location: Oklahoma
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| Posted: Jan 04, 2015 16:05 Post subject: Re: Mineral Display Case Project |
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Ed,
I believe Bob is right in thinking that the Homestake Mine piece is from the Tri-State District. The chert matrix is a dead giveaway, and a high percentage of calcite specimens from there were acid dipped to increase their luster. There is a Homestake Mine in the Granby Field of the Tri-State District, Newton County Missouri. I'll bet that's where this specimen is from.
Michael
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Turbo
Joined: 30 Sep 2009
Posts: 260
Location: Delaware
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| Posted: Jan 04, 2015 17:25 Post subject: Re: Mineral Display Case Project |
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I agree. It's probably from the Tri State District. I will have to change the label.
Thanks!
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Martin Rich
Joined: 15 Aug 2013
Posts: 127
Location: Lower Austria
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| Posted: Jan 06, 2015 22:37 Post subject: Re: Mineral Display Case Project |
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This is a very, very nice display and as a fan of calcite I like all your specimens.
Martin
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