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Show Reports

September 9-10September 11-12

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Denver Show
September 9-10, 2002

I arrived here on Sunday afternoon and found only a small handful of rooms open.  Not much to report that day as most people were in the process of setting up.   On Monday there were about half the rooms open.  Here at the Holiday Inn the floors seem to provide a stratification with the higher end material more readily visible on the first floor and that trends to material of a generally lower quality/price range.  This is not universally true but generally so.

The Holiday Inn, here where the show is, is set in an industrial part of Denver to the north of the down town area.  It is right at the junction of Interstate 25 and Interstate 70.

I spent the first real day hunting minerals on Monday and went to visit Dan Weinrich.  I had heard that Dan had acquired specimens of a new species tentatively being called "Pandaite".  It is apparently in a solid-solution series between Kesterite and Petrukite.  The chemistry of these rare specimens has the following elements in the respective percentages: Sulfur (28.79%), Copper (29.32%), Tin (25.73%), Iron (2.22%), Zinc (12.24%) with traces of Silver and Indium.  It's simplified formula is: Cu2(Zn,Fe)SnS2.  All of the specimens have an interesting alteration coating of Mushistonite which has the chemical formula:  (Cu,Zn,Fe)Sn(OH)6.  Specimens of this new mineral have been found in the well known tin mines in the Pingwu area. The name "Pandaite" is being used tentatively.  This mineral has not been formally recognized by the IMA and its name will likely be something else in the near future.  I believe that this hoard of specimens are probably the most significant new here at the Hotel show.  I did purchase one specimen that will be posted shortly.


This specimen is about 6 cm across and has a large cluster of
sharp crystals of "pandaite" with a heavy coating of mushistonite.


This is another specimen in Dan's case with two cluster of crystals on the muscovite matrix.  This one was about 5.5 cm across.

Moving around into the tent to try and track down other new things I came across a "new" bunch of fine specimens of fluorite from the Auglaize Quarry in Junction, Ohio.  Rocko's Minerals  & Jewelry had these available in addition to a number of new alexandrite specimens from Zimbabwe.


Here's a shot of Rocko pricing specimens with that dang Yankee hat on his head.
 
 
 


Here's a shot of a typical specimen from the lot I obtained.  It has that appealing two generations of fluorite - the iridescent root beer
colored crystals upon which have been deposited scattered rich violet colored crystals.  This specimen is 5 x 5 cm in dimension.


The first days of a show like this are a pleasure to be around.  There are usually not too many people as the photos below would suggest.


Here's the first floor hallway leading directly from the lobby.
 
 


Here's the lobby where two dealers specializing in gold nuggets are set up.
 
 
 


Here's the outside of the hotel.  There are tents set up in the four
areas of the show to accommodate additional dealers.

Isaias Casanova better known as IC Minerals from Florida recently returned from a trip to southern Africa.  He had some interesting specimens of rounded, blue celestite on calcite from the N'Chwaning II Mine and also some very fine specimens of shigaite from new finds there at the mine.  The shigaite is the more interesting of the two as it is a rare mineral.  It has been found there in the past as spectacular specimens.  IC's were not the best the world has ever seen from there but they are the best that anyone has at the moment anywhere.  They are typically found with rhodochrosite and (sometimes) calcite.


Here are two crystals of shigaite on rhodochrosite.  The crystal on the left is 0.7 cm across. The one on the right is 3 mm across.

One common theme heard here is that there is not much of anything new to the mineral world.  There is a tremendous amount of material of very good quality and price ranges from existing or known finds but surprisingly little in the way of new finds.  The availability of mineral specimens to the hobby has historically relied, primarily, on the material from active mining operations.  The mining industry, like many others, is in a current downturn so this trend of fewer new finds of minerals arriving to large shows is likely to continue for the foreseeable short term.   There are several groups and organizations that are working to bring specimens to the market from known deposits such as Collector's Edge working the Red Cloud Mine for wulfenite and UK Mining Ventures working the Rogerley Mine for fluorite.   But overall, the trend is headed south for the time being.  The main show is still to come and there may be some new finds there.  Time will tell of course.

More tomorrow.

Cheers from Denver,

John

Read Keith Hayes' reports on the Denver Show

Past Shows & Reports
PLEASE NOTE: The minerals that were offered on these pages are all sold
1999
Munich Show
2000
Sainte Marie Show
Munich Show
2001
Sainte Marie Show
Munich Show
2002
Tucson Show
Sainte Marie Show
Denver Show
Munich Show
2003
Tucson Show
Sainte Marie Show
East Coast Show
Denver Show
Munich Show
2004
Tucson Show
West Coast Show
East Coast Show
Denver Show
Munich Show
2005
Tucson Show
West Coast Show
East Coast Show
Denver Show
Munich Show
2006
Tucson Show
Bologna Show
Sainte Marie Show
East Coast Show
Munich Show
2007
Tucson Show
Dallas Show
East Coast Show
Denver Show
Munich Show
2008
Tucson Show
West Coast Show
East Coast Show
Denver Show
Munich Show
2009
Tucson Show
West Coast Show
East Coast Show
Denver Show
Munich Show

2010
Tucson Show
San Francisco Show
East Coast Show
Denver Show

Munich Show

2011
Tucson Show
San Francisco Show
East Coast Show
Denver Show
Munich Show

2012
Tucson Show
West Coast Show
East Coast Show
Denver Show 
Munich Show

2013
Tucson Show
Sainte Marie Show
Crystal Days (Poland)
Munich Show  

 

 
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