$60.00
M250: Copper Specimen. Locality: Keweenaw Peninsula of Upper Michigan.
Selection: Rough Specimen.
Appearance: This is natural native copper which has been mostly removed from the matrix rock which was surrounding it.
Approximate measurements: LxWxH – 5 1/4″ x 3 1/2″ x 7/8.
Availability: single specimen, exclusive.
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Copper is a reddish colored metal with a high electrical and thermal conductivity. It has its characteristic color because it reflects red and orange light and absorbs other frequencies in the visible spectrum due to its band structure. It is in the same family as Silver and Gold and is a malleable metal. It is beautiful natural or polished.
| Weight | 1.25 lbs |
|---|---|
| Dimensions | 5.25 × 3.5 × .875 in |
