Case 10

Copper Crystals

Copper Falls Mine, Keweenaw County, Michigan Excellent thumbnail from the Gribble Vein in the Copper Falls Mine. Collected underground by Ross Lillie. Ex. Seaman Mineral Museum, comes with museum label. 2.7 x 1.8 x 1.5cm SOLD TM19-1007

Fluorite

El Hammam Mine, Khemisset Province, Morocco Beautiful sea-green Fluorite with minor Quartz. 5.1 x 4.8 x 3.4cm $40 TM54-1620

Barite

National Mine, Ontonagon County, Michigan Fine miniature of tightly packed blades of barite. The National Mine was one of only a handful that produced any Barite specimens. Ex. Seaman Mineral Museum #DM14277. Comes with older label. 4.3 x 3.4 x 2.0cm SOLD TM75-679

Calcite, Pyrite &

Sepiolite

Metropolitan Mine, Felch, Michigan Very fine thumbnail of these minerals from an uncommon locality. Ex. Shawn Carlson collection #1982. 2.9 x 2.4 x 2.0cm $30 TM85-796

Copper Crystals

Northwestern Mine, Keweenaw County, Michigan Nice branch of copper crystals with some cubic coppers present. Fine miniature. 3.8 x 1.5 x .8cm SOLD TM19-1008

Gypsum, Quartz &

Calcite

Isle Royale Mine, Houghton County, Michigan Gypsum is another mineral that only occurred in a couple of mines in the Copper District. I've only seen it a few times in my collecting career. Ex. Seaman Mineral Museum #DM3091, comes with museum's display label. 9.2 x 9.0 x 2.7cm SOLD TM75-680

Datolite

Mesnard Mine, Houghton County, Michigan Another butter yellow at a very reasonable price. 2.1 x 1.9 x .8cm SOLD TM21-1343

Tenorite (Melaconite)

Copper Harbor, Keweenaw Point, Lake Superior Here is a very unique and historic piece from the black Oxide deposit found up in Copper Harbor, where they sank a shaft to mine it; one of the earliest shafts in the district, if not the earliest. Shaft is now inside Fort Wilkins State Park and can be viewed. Ex. Seaman Mineral Museum with label. Also, has another piece of history- an A.E. Foote label is attached to the specimen. 6.0 x 5.8 x 4.0cm SOLD TM75-681

Fluorite

Denton Mine, Hardin County, Illinois Excellent miniature with zoned Fluorite crystals perched on Sphalerite. 4.5 x 3.2 x 1.8cm $45 TM54-1621

Copper Crystals

Lake Superior Copper District, Michigan Outstanding miniature with a great termination and a beautiful patina that has never seen acid. 5.3 x 2.3 x 2.0cm SOLD TM19-1009

Keweenaw Agate

Keweenaw County, Michigan Very nice paint Agate from the basalts in the Keweenaw. 6.2 x 4.3 x 3.8cm SOLD TM75-682