Description
N/A Cts of Copper Pink Native Copper in a Specimens Cut24.15x14.03mm, Copper Pink Native Copper-Specimens (Michigan)
From Caledonia Mine in Michigan. Note the mixture of copper and other materials Dealer Offering Item for Sale: New Directions - GemsIt has a reddish, orangish, and/or brownish color on fresh surfaces, but typically is weathered and coated with a green tarnish of copper(II) carbonate (also known as patina or verdigris). Native Copper Specifications: - Gem Species: Native metal
- Hardness: 2.5 -
- Density:
- RI: -
Size: 24.15 (L) X 14.03 (W) mmCut: SpecimensCalibrated Gemstone: No. Carat Weight: N/A Carats AveOverall Grade: NoneClarity Description: N/A - Nothing has been defined or Clarity not able to define.Clarity Breakdown: Cabochon Opaque material - Has excellent clarity but show Minor flaws ,Cutting Breakdown: Natural cut with good proprtions, but not matching cuts.Carat Breakdown: No Carat Weight Assigned.Photo Clarity Breakdown: Color is Excellent, Image is Good, & Background is True.Photo Taken without Flash. Photo shows Multiple views of a single Specimen Pricing based on a single SpecimenFrom Caledonia Mine Ontonagon Co. Michigan.Copper, as native copper, is one of the few metallic elements to occur in uncombined form as a natural mineral, although most commonly occurs in oxidized states and mixed with other elements. Native copper was an important ore of copper in historic times and was used by pre-historic peoples. The mines of the Keweenaw native copper deposits of Upper Michigan were major copper producers in the 19th and early 20th centuries, and are the largest deposits of native copper in the world.[6] Native Americans mined copper on a small scale,This wiry aggregate, shown about twice life size, formed as metal-bearing fluids worked their way into channels and pore spaces in a preexisting matrix, probably near a volcanic zone. There are many different scenarios that mobilize and redeposit copper in the upper crust. Because native copper corrodes fairly quickly at surface conditions, specimens like this don't last long (unlike gold).It has a reddish, orangish, and/or brownish color on fresh surfaces, but typically is weathered and coated with a green tarnish of copper(II) carbonate (also known as patina or verdigris). We grade each gemstone for Color, Clarity, cut, and Carat weight. We try to define / analysis each gemstone and photo taken (all photo are of the gemstone itself not a general stone photo) to help you make a better decision. These photos are intended to provide you with an accurate visual representation of the gem.Photo's taken with a macro lens, which may make the gemstone look larger in some views..Combining of views also may make gemstone look different sizes.All photos are the exactly the gemstone pictured, minus any display items. Photos are likely not actual size; please see item description for dimensions. If there is a defect not discernible in the pictures, it will be included in the text. , Please keep in mind that the prismatic reflective properties of gems will often produce varying degrees of color and what colors you see, someone else may not. If there is a concern or doubt, please ask prior to purchase. Remember that color is a very tricky thing to transmit electronically. There are many variables, including lighting, background, physical filters, digital filters, the capabilities of the monitor on which the image is displayed, and the color perception of the viewer. Click on the photo to enlarge photo for better detail. Check out the single view of the gemstones..
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