$251-500+

Copper, Michigan - Item MSCOP-025
$350.00
$350.00
Copper, Michigan - Item MSCOP-021
$300.00
$300.00
Copper Crystals, Michgian - Item MSCOP-008
$350.00
$350.00
Goethite, Michigan - Item MSGOE-032
$350.00
$350.00
Pyrite, Peru - Item # MSPYM-033
$350.00
$350.00
Pyrolusite, Michigan - Item MSPYL-001
$300.00
$300.00
Quartz & Rhodochrosite, Romania - Item MSRHO-001
$550.00
$550.00
Silver and Copper "Snail", Michigan - item MSSIL-020
$400.00
$400.00
Shigaite, Michigan - Item# MSSHG-003
$750.00
$750.00

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Shigaite, Michigan - Item# MSSHG-004
$1,500.00
$1,500.00
Shigaite, Michigan - Item# MSSHG-005
$1,500.00
$1,500.00
Tennantite/Tetrahedrite, Calcite, & Quartz - Item# MSTET-001
$750.00
$750.00
Shigaite, Michigan - Item# MSSHG-006
$2,000.00
$2,000.00
Shigaite, Michigan - Item# MSSHG-008
$350.00
$350.00
Shigaite, Michigan - Item# MSSHG-009
$1,400.00
$1,400.00
Shigaite, Michigan - Item# MSSHG-010
$1,200.00
$1,200.00
Tennantite, Calcite, Quartz, Mexico - Item# MSTET-002
$850.00
$850.00
HUGE Copper/Silver Half-breed, Keweenaw County, Mi. - Item$ MSCOP-046
$275.00
$275.00
Rhodochrosite, Homer Mine, Mi. - Item# MSRHO-006
$325.00
$325.00
Tennantite/Tetrahedrite, Naica, Mexico - Item# MSTET-003
$800.00
$800.00
Sphalerite, Quartz, Etc, Naica, Mexico - Item# MSSPA-005
$550.00
$550.00
Pyrrhotite with Calcite & Quartz, Potosi Mine, Mexico - Item# MSPRR-002
$375.00
$375.00
Creedite, Santa Eulalia, Mexico - Item# MSCRE-001
$3,000.00
$3,000.00
Copper Crystal, Mohawk Mine #4, Mi. - Item# MSCOP-055
$800.00
$800.00
Shigaite, Homer Mine, Mi - Item# MSSHG-020
$500.00
$500.00
Tennantite, Quartz & Pyrite, Mexico - Item# MSTET-004
$450.00
$450.00
Chalcocite, Wisconsin - Item# MSCHA-004
$500.00
$500.00
Rhodochrosite on Quartz, Colorado - Item# MSRHO-010
$350.00
$350.00
Danburite, Mexico - Item# MSDAN-006
$3,500.00
$3,500.00
Rhodochrosite, Hiawatha Mine, Mi. - Item# MSRHO-012
$400.00
$400.00
Rhodochrosite, Homer Mine, Mi. - Item# MSRHO-013
$300.00
$300.00
Rhodochrosite w/Hematite, Homer Mine, Mi. - Item# MSRHO-015
$600.00
$600.00
Goethite Stalactite, Homer Mine, Mi. - Item# MSGOE-075
$350.00
$350.00
Copper Wire in Calcite, Osceola Mine, Mi. - Item# MSCOP-064
$700.00
$700.00
Silver Crystals on Copper, Copper Falls Mine, Mi - Item# MSSIL-027
$650.00
$650.00
Silver Crystals W/Copper and Quartz, Caledonia Mine, Mi. - Item# MSSIL-028
$1,000.00
$1,000.00