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6 specimens listed
Page   1 |

Copper in Calcite with Epidote, Microcline and Pumpellyite
stock #21.1-322
Houghton County
Michigan, United States
4.8 x 4 x 4.1 CM (miniature)
price: $170
Late Summer 2021

Some masses of native copper mixed with gem clear Calcite crystals, most of which are richly included. A complex specimen on an amygdaloidal basalt matrix having many cavities filled with micro crystals. These vugs hold many Epidote crystal clusters most being on contrasting salmon colored crystals of Microcline. Good looking by naked eye but really amazing with magnification, this has a good mixture of species and is classic upper Michigan material. Unfortunately we have no mine attribution but this looks like a perfect match to the famed Quincy Mine.

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 in and on Calcite USA Classic
stock #AX-12-460
Keweenaw Co.
Michigan, United States
5.3 x 3.4 x 2.7 CM (cabinet)
price: $1150
Spring 2020

An excellent vintage Copper in Calcite from the famed Philadelphia Academy collection, and retains their original label. This also has labels from Collectors Edge and Carter Rich, and was for a time in the William Hladysz collection. The matrix here is mostly clear Calcite in clusters of crystals more or less aligned. The clear Calcite are colored red-brown by large amounts of included copper easily seen inside the crystals. In several areas the Copper crystals extend outside the Calcite. The main crystal is 1.2 CM and very well formed. In excellent condition, and much better looking in person.

SOLD Copper in Calcite
stock #SOLD 18.1-696
Onganja Mine, Windhoek District
Khomas Region, Namibia
4.9 x 3.8 x 3.5 CM (miniature)
price: $0


An exceptional (and very unusual) Copper in Calcite from the great Onganja Mine. A large sharp transparent Calcite 3.8 CM across sits on and is included by Copper. The matrix is partly Copper, Malachite and Chalcotrichite. The Calcite is unlike most from Onganja as it is a simple modified rhomb without the complex habits or twinning that is typical from here. This displays well from most any angle, in very good condition with only very minor rub spots. The Onganja mine was once a prolific source of fine Coppers, Cuprites etc but the Calcites were always especially rare and sought after. The mine has been closed and flooded for years. This specimen is quite striking in person and a significant Copper.

SOLD Copper in Calcite- vintage specimen ex Museum
stock #SOLD 15.1-507
Quincy Mine, Hancock, Houghton County
Michigan, United States
5.7 x 3.7 x 2.4 CM (cabinet)
price: $0
Worldwide mix summer

Calcite crystals richly included by Copper in branching clusters which gives the Calcite a distinctive color. A very old Dartmouth College Museum and a Carl Bentley labels are included. some Copper is seen outside of the Calcite as well. Choice, minimal damage on outer edges but all the main Calcite is clean and undamaged. A good USA classic copper specimen that is far more affordable than typical.

Copper with and in Calcite
stock #15.1-892
West Vein, Phoenix Mine, Phoenix, Keweenaw County
Michigan, United States
6.8 x 3.4 x 2 CM (cabinet)
price: $700
Pre Holiday 2017

Esthetic and not typical at all! Native Copper in leafy tendrils holds and is inside very clear crystals of Calcite. The Calcite is in blocky cube forms with complex growth hills on some faces and colored by the inclusions a bright Copper hue. The Calcites are glassy and the whole composition is very attractive. Some contacts are noted mostly on the backside of the specimen, overall in fine condition. I have not seen another of this style in many years.