The Denver 2017 Best Offer Mineral Auctions

Each auction specimen will be presented with it's Original Retail Price and Suggested Reserve Price Level.
Please feel free to place a bid at this level or make your own offer above or below the reserve. Any offers
that are below the Suggested Reserve Price must be approved before they are accepted into the auction.
In the event the offer is too low, an e-mail with our counteroffer with be sent for your consideration.

Please make your best offer because this will increase your odds of winning. Proxy bidding is available.

This is a One Week Auction Only - Good luck and have fun!

Most Recent Update was ....... 11:04 AM  October 22nd, 2017

To Place a Bid or Offer in the Auction, Please Select the "Click to Bid" Button Below Each Item.

Item #A1

Gorgeous specimen of banded Amber with termite, beetle, and fly inclusions!
This is a fairly large, small cabinet sized specimen and it is loaded with insects. I count at least a dozen termites
along with a beatle, a fly, and another unidentified insect, but I'm sure there are many more inside this large,
transparent Amber if one takes the time to track them all down. The interior of this specimen is a work of natural
design with numerous clusters of small bubbles and pillars against a glistening backdrop of shapes and textures
showing through from the back side. The interior glows through the polished surfaces. Sits upright without a stand.
From Boyacá Department, Colombia.
Dates from the Pleistocene (up to 2 million years old) to the Lower Miocene (about 20 million years old).
Measures 7 cm by 12.1 cm by 4.2 cm in total size.
Fair Market Value $1450

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$650.00 9:38 AM 10/21/17 Sedona, AZ
$675.00 1:30 PM 10/21/17 Redwood City, CA
       
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Denver2016-114RhodoniteArgentina51mm.jpg (410094 bytes)
Item #A2

Reddish-pink crystals of Rhodonite on white Quartz covered matrix!
I haven't seen one of these specimens in a long time and this miniature displays
several good crystal blades, with the horizontal one in the center measuring 2.5 cm
in length. The Quartz backing is bright and flashy and their are no major detractions.
From the San Martin Mine, Chiurucu, Huallanca, Bolognesi Province, Ancash Department, Peru.
Measures 3.5 cm by 5 cm by 3 cm in total size.
Fair Market Value $700

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$190.00 2:14 AM 10/21/17 New Zealand
$225.00 6:33 AM 10/22/17 Montana
       
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Item #A3

The "Silver Scorpian"
Super bright and lustrous Native Silver after Allargentum and Dyscrasite on Calcite!

A dazzling specimen which is completely crystalline and extremely aesthetic. I nicknamed it "The Scorpion" due to its
interesting shape which I think resembles the claws and tail of a scorpion. The specimen can be displayed from either
side and displays the sharp crystals on both the front and back. The structure is dendritic which well formed crystals at
the ends and forming a good portion of the dendrite. The stark white Calcite and green matrix adds the perfect backdrop.
From the Bouismas Mine, Bouismas, Bou Azer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco.
Measures 3.8 cm by 5.3 cm by 1.8 cm in total size.

Ex. Kleine Mineral Collection
Fair Market Value $1250

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$500.00 11:28 AM 10/21/17 Parker, CO
$600.00 12:15 PM 10/21/17 Quebec, Canada
$625.00 1:30 PM 10/21/17 Redwood City, CA
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Item #A4

Super lustrous specimen of multi-colored Smithsonite!
Fine, brilliant, rolling surfaces change from bright white atop the high points to sky-blue and grassy-green
atop both the right and left sides.. There were several growth stages in the development of this specimen
as one layer grew atop the other, each displaying its own coloration. The surfaces are clean and contact free.
From Choix, Mun. de Choix, Sinaloa, Mexico.
Measures 7.5 cm by 8.5 cm by 3.8 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$250.00 5:23 PM 10/21/17 San Diego, CA
       
       
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Item #A5

Cute specimen of an elongated pinkish Calcite with Hematite accenting!
This is a locality that doesn't appear at the shows very often and this fine example displays
a 6.3 cm doubly terminated Calcite! The crystal is a light pink, most likely due to the influence
of Hematite, and is then accented atop the left side surfaces with a dusting of Hematite as well.
From the Pea Ridge Mine, Sullivan, Washington County, Missouri.
Measures 7 cm by 2.2 cm by 3.5 cm in total size.

Fair Market Value $485

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Item #A6

Fine blades of deep orange Wulfenite on Barite clusters!
Impressive miniature, with blades measuring to 1.5 cm in size. The blades are sharp, well formed,
and translucent with a glasssy surface luster. They are almost all perfect with only one incomplete
blades near the exterior of the cluster. This was probably attached to the matrix prior to trimming.
From the Mibladen Mining District, Midelt Province, Drâa-Tafilalet Region, Morocco.
Measures 4.3 cm by 5.2 cm by 3.1 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
Enter Your Best Offer!      
       
       
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Tucson2016-220FluoriteFujianProvinceChina95mm.jpg (366773 bytes)
Item #A7

Gemmy cubes of modified Fluorite perched atop small Quartz crystals!
This is from a new find in China and the cubes are incredible clear and transparent
with a glowing green coloration that becomes even more intense under lighting. Very
pretty and in excellent condition with only one tiny corner cleave on a smaller crystal.
From Youxi Co., Sanming Prefecture, Fujian Province, China.
Measures 5.5 cm by 9.9 cm by 3.8 cm in total size.
Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Item #A8

Rare specimen of Native Gold on Petzite!
This is the first specimen I've seen from this locality in Montana. A fine, brilliant leaf of Native Gold
sits high atop Petzite with white Calcite accents. A wonderful locality Gold with hints of iridescence.
From the Mayflower Prospect (West Mayflower Mine), Norwegian District, Madison Co., Montana.
Measures 1.4 cm by 2 cm by 2.1 cm in total size.
Comes with old original hand written label
Fair Market Value $585

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$167.00 3:18 PM 10/20/17 WASHINGTON, DC
       
       
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Item #A9

Gemmy yellow crystals of Brazilianite on white Albite matrix!
This cute small miniature sized specimen features an attractive grouping of gem Brazilianite
crystals, with the largest horizontal crystal measuring 2.7 cm in size. In excellent condition.
From the Telírio claim, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil.
Measures 5.2 cm by 6 cm by 4.7 cm in total size.
Ex. Benoit Dumont Collection

Fair Market Value $1500

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
Enter Your Best Offer!      
       
       
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Tucson2015-255CalciteFluoriteMinerva1MineIllinois135mm.jpg (491547 bytes)
Item #A10

Amazing cabinet sized plate featuring an assortment of sharp Calcite crystals on yellow Fluorite with purple Fluorite cubes!
One of the more impressive Illinois Calcites from the show, this specimen is from the famous Ross C. Lillie Collection, one
of the finest Illinois Fluorite and associated minerals collection ever assembled. The Calcites are all terminated with some
being doubly terminated and they exhibit a wet, flashy luster. They rise up from a base of yellow Fluorite and many stand
vertically, giving the appearance of 3-dimensionality to the plate. In excellent condition overall with only minor contacts.
From the Bethel Level of the Minerva #1 Mine, Minerva Oil Company, Cave-in-Rock District, Hardin County, Illinois.
Mined in the 1960's - Measures 12.2 cm by 14.5 cm by 5.7 cm in total size.
Ex. Ross C. Lillie Collection #RCL0591

Fair Market Value $2850

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$25.00 3:00 PM 10/20/17 West Chester, PA
$375.00 5:27 PM 10/21/17 San Diego, CA
       
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Item #A11

Aesthetic specimen  featuring a stair stepping display of Wulfenite tabs on Calcite!
I look the way the Wulfenites step up the matrix in ascending size until they reach the
largest crystal at top, measuring 2.2 cm in size. In excellent condition with barely a contact
anywhere and displaying lustrous, bright orange surfaces. One of the better miniatures I've seen.
From the Erupción Mine, Los Lamentos Mts (Sierra de Los Lamentos), Mun. de Ahumada, Chihuahua, Mexico.
Measures 3.6 cm by 3 cm by 5.7 cm in total size.
Fair Market Value $1500

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$250.00 2:05 PM 10/20/17 Montgomery, TX
       
       
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Denver2013-44AzuriteMalbunkaCopperMineAustralia119mm.jpg (218704 bytes)
Item #A12

Aesthetic plate featuring flattened discs of Azurite on Kaolinite matrix!
These flattened discs of Azurite are formed between layers of Kaolinite which forced them to grow in a laterally
compressed, radiating manner. There are well over a dozen here on this small cabinet sized plate, measuring to
3.4 cm in size. This is one of the best covered plates in the cabinet size range that I found in Tucson and the
discs are in excellent condition with a radiating luster. The color of these Azurite "suns" is a deep royal blue.
From the Malbunka Copper Mine, Alice Springs, Gardiner Range, MacDonnell Shire, Northern Territory, Australia.
Measures 12 cm by 8.6 cm by 3.4 cm in total size.
Fair Market Value $2450

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Item #A13

Fine specimen featuring Brochantite acicular crystals clusters with Barite on Limonite coated Quartz matrix!
An eye catching specimen displaying some of the finest Brochantite needles the Blanchard has to offer.
The color is a lustrous emerald-green and the contrast against the Limonite coating and Barite is incredible.
From the Blanchard Mine, Bingham, Hansonburg District, Socorro Co., New Mexico.
Measures 8 cm by 10.8 cm by 7.5 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$300.00 1:15 PM 10/20/17 Austin, TX
$350.00 1:30 PM 10/21/17 Redwood City, CA
       
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Item #A14

Beautiful specimen of Raspberry Grossular Garnet on matrix!
Raspberry Garnets are renown for their great looks but unfortunately they're also well known
for their damage and broken crystals. Recently some new specimens have appeared on the
market but they were mostly of a very low quality. This specimen is from the earlier 1997 find and
is in excellent condition with a 2+ cm Garnet at top center. Definately one of the best at the show!

From Sierra de Cruces, Mun. de Sierra Mojada, Coahuila, Mexico.
Measures 7.3 cm by 6.5 cm by 6.6 cm in total size.
Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$350.00 9:21 PM 10/21/17 Denver, CO
       
       
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Tucson2015-141DanburiteCalciteBorMineRussia62mm.jpg (245801 bytes)
Item #A15

Glassy green crystals of Datolite with Calcite blades accenting the edges!
This is a beautiful specimen which has a good amount of transparency as well. The Datolite crystals are very
lustrous with a pleasing, soft green coloration. The largest Datolite is framed by blades of tannish-white Calcite,
adding to the overall aesthetical balance and eye appeal of the specimen. In excellent condition with no detractions.
From the Bor Pit, Dal'negorsk, Kavalerovo Mining Dist., Primorskiy Kray, Far-Eastern Region, Russia
Measures 5.7 cm by 6.1 cm by 3.8 cm in total size.
Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
Enter Your Best Offer!      
       
       
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Item #A16

Large and quite aesthetic Nickel-Iron Stony Meteorite!
This beautiful specimen is a hand sized Meteorite which displays a gorgeous patina
along its fusion crust with fine, sculptural regmaglypts. The specimen was discovered
in the Saharan Desert of Mali and weighs a heavy 1128 grams. A great display piece!
From Dar el Kahal, Gao, Northern Mali
Fair Market Value $1500

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$300.00 1:15 PM 10/20/17 Austin, TX
$325.00 7:48 AM 10/22/17 Ireland
$350.00 10:55 AM 10/22/17 Redwood City, CA
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Tucson2016-89HeulanditeJalgaonIndia72mm.jpg (354925 bytes)
Item #A17

Super aesthetic specimen featuring Heulandite blades on Chalcedony!
This attractive specimen was actually a Chalcedony vug that grew a perfect
peachy colored Heulandite crystal cluster. Smaller crystals of Quartz surround
the Heulandite at both the top and bottom, making for a brilliant, sparkling display.
From the Jalgaon District, Maharashtra, India.
Measures 6 cm by 7.2 cm by 6.4 cm in total size.
Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
Enter Your Best Offer!      
       
       
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Tucson2016-218OpalQueenslandAustralia76mm.jpg (313235 bytes)
Item #A18

Gorgeous "Painted Lady" Precious Opal specimen from Australia!
This seam of naturally polished Precious Opal displays brilliant flashes of every
color imaginable. Reds, blues, greens, yellows, oranges, pinks, and purple with the
flashes of red being the most prominent. Painted Ladies are seams of Opal that occur
in a hard sandstone matrix. When split, the sandstone looks as if it has been painted.
From the Andamooka opal fields, Andamooka Ranges, Stuart Shelf, South Australia, Australia.
Measures 7.9 cm by 4.3 cm by 5.6 cm in total size.
Fair Market Value $895

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$255.00 5:45 AM 10/21/17 S. Australia
       
       
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Tucson2016-240AndraditeSerifosGreece49mm.jpg (177753 bytes)
Item #A19

Gemmy crystals of Andradite Garnet perched atop sprays of Hedenbergite!
Very attractive small miniature from the historic locality of Serifos, Greece.
From Serifos Island, Kykládes Prefecture, Aegean Islands Department, Greece.
Measures 5 cm by 3 cm by 1.7 cm in total size.

Fair Market Value $250

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Item #A20

Large, lustrous crystal cluster of Acanthite ps after Argentite with Chalcopyrite!
We acquired a collection of this very large, super lustrous Acanthite crystals while in Denver
and they are quite the sight to see. Most if not all display some hoppering indicating a very quick
formation as the Acanthite pseudomorphed the higher temperature Argentite. Exceptional specimen!
From Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico.
Measures 4.5 cm by 2.4 cm by 2.3 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$250.00 2:28PM 10/20/17 London, UK
       
       
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Item #A21

Fine, transparent crystals of Selenite growing between two layers of Selenite covered matrix!
This beautiful specimen is from the Lubin Mine which is an old Polish Copper Mine. The deep orange color
of the base matrix is from mineral impurities and it provides a colorful contrast for the glistening blades of
selenite which stretch between the matrix layers. This material came out years ago and has all but disappeared
from the mineral shows. The blades are in excellent shape, with many exhibiting fishtail twinning. Bright and lustrous!
From the Lubin Mine, Lubin, Lubin District, Legnica, Lower Silesia, Poland.
Measures 6.3 cm by 20.8 cm by 9.2 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$300.00 10:55 AM 10/22/17 Redwood City, CA
       
       
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Item #A22

Dazzling specimen featuring iridescent Chalcopyrite on Calcite crystals!
This is a fine specimen of white scalenohedral Calcites in cluster with a heavy coating
of Chalcopyrite atop the vertical faces. The Chalcopyrite shifts to a rainbow colored
iridescence along the right side and this really sets off the color contrast. Very nice!
From the Fengjiashan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China.
Measures 4.5 cm by 8 cm by 4.3 cm in total size.
Fair Market Value $785

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
Enter Your Best Offer!      
       
       
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Item #A23

Stunning plate featuring brilliant dendrites of Native Silver in pinkish Dolomitic matrix!
These amazing rounded dendrites are incredibly brilliant and extend through the Dolomitic matrix
to the back side so the specimen is displayable from either the front or back. A rich and flashy classic!
From the Beaver Mine, Coleman Township, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada.
Fair Market Value $685

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Tucson2016-167KyaniteMinasGeraisBrazil.jpg (471219 bytes)
Item #A24

Impressive large cabinet sized specimen of blue Kyanite crystals in Quartz matrix!
The vertical 11.5 cm blade in the front is doubly terminated with excellent luster and a
beautifully consistant blue coloration. The doubly terminated blade running horizontally
measures over 20 cm in length! Numerous additional blades can be seen appearing from
the Quartz matrix, framing the specimen on all sides. Sits all on its own as a centerpiece.
From São José da Safira, Minas Gerais, Southeast Region of Brazil.
Measures 11 cm by 19 cm by 10.2 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
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Denver2016-5FluoriteSphaleriteElmwoodMineTennessee11cm.jpg (345615 bytes)
Item #A25

Fine cluster of lavender accented Fluorite cubes with Ruby-jack Sphalerite crystals!
Great looking specimen from the famous Elmwood Mine but this one has a bit more than your average
Fluorite cluster. The Fluorite cubes have a slightly golden internal coloration which glows with direct
lighting in additional to a speckled lavender accenting atop many of the crystal faces. Red crystals of
garnet-like Ruby-jack Sphalerite are scattered about, adding additional color to the Fluorite cluster.
From the Elmwood Mine, Smith County, Tennessee.
Measurements - 11 cm by 10.4 cm by 9.8 cm in total size.

Fair Market Value $985

* Our Suggested Reserve Price Level - No Reserve
Minimum Increment - $25

Highest Bid or Offer Time Date Location
$100.00 1:49 PM 10/20/17 Houston, TX
       
       
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Good Luck To All Bidders!
Please Check Your Bids As Often As Possible for Price Changes!

 

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