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4 specimens listed
Page   1 |

Copper in and on Calcite (historic, classic)
stock #20.1-519-(304)
Cliff Mine, Pheonix, Keweenaw County
Michigan, United States
6.7 x 5.7 x 2.4 CM (cabinet)
price: $900
Early summer 2021

An important vintage specimen from the famed Wallace Gould Levison collection that he obtained at the mine in 1863. Aside from being old, this is an especially attractive specimen with sharp, clear and mostly transparent Calcite reaching 2 CM. These contain and surround crystalized Copper. The Copper crystals on the surface are well-formed some being dodecahedral and up to 8MM in size. Levison made only one trip from NY City to the Upper Peninsula of Michigan in 1863, he obtained a few nice specimens but never returned. He kept meticulous notes and we will include a copy of the relevant page from his handwritten collection ledger for this specimen. Levison was a dedicated collector, mineralogist, author and inventor active during the 1862-1921 era. His handwritten label is affixed to the back of the specimen. A classic Cliff Mine piece with excellent provenance!

Copper with Malachite and Analcime
stock #16.1-450-(CN4044)
Cliff Mine, Pheonix, Keweenaw County
Michigan, United States
6.9 x 5.8 x 5.9 (cabinet)
price: $1250
Early summer 2021

A cluster of Copper crystals of many sizes, most being complex dodecahedrons. Malachite encrusts the Copper making a great color contrast. Scattered small Analcime crystals, a few of which are transparent, add a further contrast. An older specimen, ex. Charles M. Noll collection, this displays well from any angle. Close exam shows the smallest Copper crystals are super sharp, textbook perfect nestled between the medium and large sized crystals that are a little more crude though still distinct. A fine Michigan Copper that is a bit different and is especially showy in person.

Copper - branching crystals on matrix
stock #20.1-824
Cliff Mine, Pheonix, Keweenaw County
Michigan, United States
6.2 x 3.6x 2.5 CM (cabinet)
price: $80
new year 2021

A tree of crudely crystallized Copper 3.5 CM tall branches from this blocky matrix. A few small chunks of colorless Calcite are on some branches as well, adding some contrast. The Copper branches are locked in the matrix along a line of small holes and are able to be moved several degrees but are still firmly held. The movement of the copper on the matrix is an oddity and not at all common.

Copper
stock #1003-JM-1428
Cliff Mine, Pheonix, Keweenaw County
Michigan, United States
16.1 x 2 x .5 CM (cabinet)
price: $220


An antique native copper "finger" or "fan blade" made by skilled hand chiseling long ago. These artifacts were made by miners from the often huge masses of pure Copper encountered in the Upper Penninsula of Michigan. From the John Marshall collection, this is recorded as from the Cliff Mine, such attributions of these artifacts are quite uncommon. Aside from the very hard labor of hammering through solid copper, these fingers required a lot of skill to create such a long straight and clean blade. While not a typical mineral specimen this is a very much a classic Native Copper that has had a major trimming job!