Very Rare Smithsonite display specimen from Sinaloa Mexico

Item Information

Dimensions (mm) 132 x 86 x 40mm
Weight (carats) 3700 carats
Colors
No Treatment

Very Rare Smithsonite display specimen from Sinaloa Mexico

dimensions 132  mm x 86 mm x 40 mm

weight 740 grams

Mexico has two outstanding Smithsonite localities which contain beautifully colored Smithsonite, including deep pink and electric green colors. These are the Refugio Mine, Choix, Sinaloa; and the San Antonio Mine, Santa Eulalia District, Chihuahua.

Very Rare Smithsonite display specimen from Sinaloa Mexico
dimensions 132  mm x 86 mm x 40 mm
weight 740 grams

Mexico has two outstanding Smithsonite localities which contain beautifully colored Smithsonite, including deep pink and electric green colors. These are the Refugio Mine, Choix, Sinaloa; and the San Antonio Mine, Santa Eulalia District, Chihuahua.
Smithsonite occurs in a wide variation of colors. Its typical globular habit and often vibrant colors make this a desirable mineral for collectors. Smithsonite is composed of zinc carbonate, but the zinc may be partially replaced with other elements. Those elements are responsible for the color variations. For example, copper  often causes green or bright blue colors, and cobalt causes a pink to purple color. Cadmium makes Smithsonite yellow, and iron gives it a brown to reddish-brown color.
 Smithsonite aggregates are sometimes lubricated with oils by dealers to enhance luster and appeal to collectors.

Smithsonite belongs to the calcite group of minerals, a group of related carbonates that are isomorphous with one another. They are similar in many physical properties, and may partially or fully replace one another, forming a solid solution series. All members of the calcite group crystallize in the trigonal system, have perfect rhombohedral cleavage, and exhibit strong double refraction in transparent rhombohedrons.  Smithsonite is named in honor of James Smithson, the founder of the Smithsonian Institution.

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32 bids placed so far
$450.00 budwieser
9th Aug 2017 11:25am PDT
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31st Jul 2017 9:17pm PDT
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27th Jul 2017 6:39pm PDT
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21st Jul 2017 6:25am PDT
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21st Jul 2017 6:24am PDT
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20th Jul 2017 9:43pm PDT
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16th Jul 2017 1:04am PDT
$3.00 natalie7tay8
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$1.00 fdequillettes
15th Jul 2017 12:42pm PDT
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Pricing & Details

Reserve has been met

Bid Increment $1.00
Starting Bid $1.00
Auction ID 680782
Watchers 6 watching
Viewed 531 times
Starts 28th Jul 2017 4:42pm PDT
Ends 22nd Sep 2017 4:40pm PDT

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