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21 specimens listed
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Silver and Copper (halfbreed)
stock #14.1-269
Caledonia Mine, Mass City, Ontonagon County
Michigan, United States
2.2 x 1.7 x 1.2 CM (thumbnail)
price: $110


A US classic a choice Halfbreed of Silver and Copper that shows perfectly the two metallic colors with very bright luster. Looks fine on all sides, the Halfbreed masses from this region are unlike anything from other places. The copper mined in the Upper Pennisula of Michigan tended to have some small percentage of Silver mixed in. This was especially desirable in the early manufacturing of electrical wires.

Native Silver (Sheet form)
stock #15.1-457
Eisleben, Mansfeld Basin
Saxony- Anhalt, Germany
7.6 x 2.6 x 1.9 CM (cabinet)
price: $120


One of the more odd forms of Silver are these thin sheets, almost like a Silver foil found in narrow seams of Slate. Very old material, these were mostly extracted in the early 1900's, the locality is a German classic. The Slate matrix is Copper bearing which is an unusual host for Silver anyplace. The Silver leaf is partly peeling from the matrix and shows the delicate form, being under .05MM thick.

Silver and Copper
stock #LH-702
Calumet
Michigan, United States
6.7 x 3.1 x 1.7 CM (cabinet)
price: $120
Spring 2020

A hackly mass of Copper holds some areas of crudely crystalline Silver. The largest zone of Silver also has a few areas of Copper growing on the Ag which is less common than the other way round. A good mixed native element specimen from the Hitchings collection that he obtained in 1970. This sort of association is unique to the upper Pennisula of Michigan.

Silver on Copper
stock #17.1-624
Keweenaw Co.
Michigan, United States
4.6 x 2.7 x 1.6 CM (miniature)
price: $350
Spring 2020

A classic USA "halfbreed" cluster of crude crystals with a sizable percentage of Silver. Ex Less Hitchings collection, the main "glob" of Silver is 2.3 CM across and has distinct color, form and relief from the Copper. The specimen was purchased in 1967 and as was typical at that time has only the area locality (Keweenaw Penninsula). Good halfbreeds have always been appreciated as classic for the UP, and are unique in the world. This one is particularly rich and esthetic, weighs 57 grams, quite dense for the miniature size.

Silver - very pure crystalline mass
stock #10.1-137
Mass Consolidated Mine, Mass City, Ontonagon County,
Michigan, United States
5.3 x 4.7 z 3.2 CM (small cabinet/ large miniature)
price: $1300


A complex mass of crude crystals that have very clearly formed in a conglomerate type matrix that is now gone. This is a sponge-like cluster yet very solid and intricate. The patina ranges from a dark near black on some edges grading to a more silvery metallic in the center. I have not seen many specimens from the Mass mine but all have this spongy look and this is the best example in my limited experience. According to Mindat the mine closed in 1919. A really different looking Silver that displays fine on all sides. 78 grams.

SOLD Silver -classic thick wire
stock #SOLD 20.1-100
Kongsberg Silver mining district, Kongsberg
Buskerud, Norway
2.5 x 1.5 x 1 CM (thumbnail)
price: $0
Spring 2020

A stout, well formed Silver wire in ramshorn form from Kongsberg. For some reason, Kongsberg Silvers tend to be thicker, rope-like wires of this sort, the form is unlike most other localities. A killer thumbnail that looks fine from any side, ex Mario Pauwels collection. Kongsberg is of course a legendary Silver locality, which started in 1623 and peaked in the 1770 era. Long closed now but this region produced incredible quantities of Silver for centuries. Some huge wires were found long ago as thick as an arm. those are now priceless treasures seen in museums only. This much smaller piece is like a perfect scaled down version of those famed fat ropes of Silver.

Silver - wire mass
stock #9.1-022
Dzhezkazgan Mining District
Zhezgazghan Oblysy, Kazakhstan
4.8 x 3.1 x 1.6 CM (miniature)
price: $780
Spring 2020

A choice, dense mass of thick and thin wires (some flattened) forming a cluster of curls. From finds about 20 years ago in Kazakhstan, this is a far better than typical specimen with good form, character and a nice dark patina. Ex Ernie Schlichter, these are just not seen anymore and are quite distinctive, a very nice Silver with classic form.

Silver - wires with Quartz
stock #AC-379
Cobalt, Gowganda region, Timiskaming District
Ontario, Canada
6.9 x 5.9 x 4.3 CM (cabinet)
price: $760
Spring 2020

Silver wires with tiny Quartz crystals coating and encasing some of the Silver. From the prolific Cobalt area this specimen is fairly old, it was sold by the Schortmann Brothers in the early 1960 era. The Quartz undermagnification is a sparkling druze of doubly terminated crystals many of which have a Cumberland habit. Close exam of the matrix shows that there is a lot more silver unclosed under layers of Quartz. The exposed area of wires is a dense nest with a few slender hairs rising to about 3 CM long. A choice, delicate and esthetic piece which looks better the more it is examined.