#75253, Bournonite (doubly terminated crystals), Yaogangxian Mine, China (t) $100

#75393, Sphalerite, Lincoln Quarry, Beamsville, Canada (t) $36

#75251, Bournonite (doubly terminated crystals), Yaogangxian Mine, China (m) $250

#75231, Bournonite (doubly terminated twinned crystals), Yaogangxian Mine, China (m) $325

#75235, Bournonite, Quartz, Pyrite, Yaogangxian Mine, China (m) $375

#73815, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $28

#73862, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $35

#68477, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $40

#75297, Pyrite (complex crystal form), Milpillas Mine, Mexico (t) $24

#73383, Franckeite, Mina San José, Bolivia (c) $165

#74691, Arsenopyrite with Fluorite, Yaogangxian Mine, China (m) $55

#73978, Galena (Spinel Law-twinned) and Calcite, Casapalca District, Peru (t) $36

#73758, Bournonite (cyclic twinned crystals), Yaogangxian Mine, China (t) $150

#74687, Sphalerite (lamellar Spinel Law-twinned) with Dolomite, Mina San Antonio, Santa Eulalia, Mexico (m) $55

#75120, Orpiment, El'brusskiy Mine, Russia (c) $285

#68665, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $35

#75044, Bournonite (tabular doubly-terminated crystal), Yaogangxian Mine, China (t) $165

#72699, Calcite on Galena, Nikolaevskiy Mine, Dalnegorsk, Russia (c) $150

#73401, Sphalerite with Calcite, Siderite and Pyrite, Dalnegorsk, Russia (c) $150

#73402, Bournonite, Quartz, Chalcopyrite and Jamesonite-Boulangerite, Yaogangxian Mine, China (m) $150

#75141, Sphalerite on Dolomite, Mina Troya, Mutiloa, Spain (m) $38

#73948, Pyrargyrite with Quartz and Calcite, Fresnillo District, Mexico (t) $175

#68637, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $95

#75046, Bournonite (floater crystal), Yaogangxian Mine, China (t) $150

#72808, Bournonite and Sphalerite with Boulangerite and Pyrite, Baia Mare, Romania (c) $125

#68634, Pyrite with Hematite-coated Quartz, Milpillas Mine, Mexico (c) $95

#68630, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $95

#73977, Sphalerite on Siderite and Quartz with Galena, Réalmont, France (c) $35

#72799, Galena with Quartz, Calcite, Sphalerite, Herja Mine, Baia Mare, Romania (c) $95

#68475, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $65

#73965, Sphalerite (Spinel-Law twinned parallel crystals), Second Sovietskiy Mine, Dalnegorsk, Russia (c) $95

#68651, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $85

#73938, Pyrite nodule, ZCA Pierrepont Mine, New York (t) $25

#68624, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $85

#68626, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $85

#73816, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $22

#75249, Bournonite, Yaogangxian Mine, China (m) $375

#68669, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $42

#73395, Pyrite, Victoria Mine, Spain (c) $75

#68653, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $75

#68632, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $75

#68631, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $75

#68627, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $75

#73762, Acanthite (with iridescent overgrowth), San Juan de Rayas Mine, Mexico (t) $75

#75294, Stibnite, Calcite, Berthierite, San Martín Mine, Mexico (t) $22

#73681, Cinnabar on Dolomite with Quartz, Fenghuang, Xiangxi, China (c) $150

#68625, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $75

#72590, Acanthite, Chalcopyrite, Quartz, Guanajuato Silver Mining District, Mexico (t) $38

#73817, Pyrite with partial Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $28

#68662, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $55

#73819, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $26

#73392, Sphalerite and Dolomite, Mina Troya, Mutiloa, Spain (m) $55

#68616, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $55

#75020, Arsenopyrite, Fluorite, Ferberite, Muscovite, Quartz, Yaogangxian Mine, China (m) $95

#72598, Franckeite with Jamesonite-Boulangerite, Mina San José, Bolivia (t) $55

#68649, Pyrite with Chalcocite-Djurleite-Bornite coating in Quartz, Milpillas Mine, Mexico (m) $55

#68639, Pyrite with Quartz, Milpillas Mine, Mexico (m) $45

#75059, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $75

#73820, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $26

#68615, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (m) $65

#73049, Galena (Spinel-Law twinned crystals), Sphalerite, Pyrite, Santa Eulalia District, Mexico (m) $28

#70597, Acanthite, San Juan de Rayas Mine, Mexico (t) $28

#72000, Pyrite with minor Sphalerite, Huanzala Mine, Peru (m) $35

#72991, Sphalerite (Spinel Law twins) with Quartz with minor Fluorite, Santa Eulalia District, Mexico (m) $30

#75234, Acanthite with Native Silver (naturally occurring silver crystals), Xiaoqinggou, China (m) $225

#75319, Millerite in Quartz Geode, US Route 27 road cut, Halls Gap, Kentucky (t) $30

#73818, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $45

#74819, Pyrite, Phlegrean Volcanic Complex, Italy (t) $22

#74690, Sphalerite (lamellar Spinel Law-twinned), Tri-State Lead-Zinc Mining District, Missouri (m) $38

#75318, Millerite in Quartz Geode, US Route 27 road cut, Halls Gap, Kentucky (t) $18

#74814, Realgar with Galena, Phlegrean Volcanic Complex, Italy (t) $25

#75298, Pyrite (complex crystal form), Milpillas Mine, Mexico (t) $35

#75316, Millerite in Quartz Geode, US Route 27 road cut, Halls Gap, Kentucky (t) $28

#75315, Millerite in Quartz Geode, US Route 27 road cut, Halls Gap, Kentucky (t) $22

#74818, Realgar, Phlegrean Volcanic Complex, Italy (t) $22

#74624, Sphalerite on Prehnite, O and G Industries Southbury Quarry, Connecticut (m) $30

#75335, Stannite, Yaogangxian Mine, China (t) $100

#74816, Realgar with Pyrrhotite, Phlegrean Volcanic Complex, Italy (t) $18

#74817, Realgar with Dolomite, Phlegrean Volcanic Complex, Italy (t) $18

#75331, Acanthite, Xiaoqinggou, China (t) $35

#75325, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $32

#75326, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $30

#75324, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $35

#75323, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $36

#75450, Pyrite with Chalcocite-Djurleite-Bornite overgrowth, Milpillas Mine, Mexico (t) $32

#73862, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $35

#75451, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (t) $45

#75329, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $55

#75348, Pyrite with partial coating of Chalcocite-Djurleite-Bornite, Milpillas Mine, Mexico (t) $36

#73897, Sphalerite, Tetrahedrite, Quartz, Trepca District, Kosovo (c) $95

#75329, Pyrite with Chalcocite-Djurleite-Bornite coating, Milpillas Mine, Mexico (c) $55

#75332, Acanthite, Mina la Sirena, Mexico (t) $115

#74774, Germanite with Tennantite, Tsumeb Mine, Namibia (Type Locality for Germanite) (m) $95

#75390, Sphalerite, Galmoy Mine, Ireland (t) $28

#75465, Tetrahedrite in Quartz-Barite, Großkogel Mountain, Austria (m) $95

#75486, Pyrite with partial coating of Chalcocite-Djurleite-Bornite, Milpillas Mine, Mexico (m) $40

#72577, Sphalerite, Fluorite, Pyrite over Dolomite, Dodds Pocket, Smallcleugh Mine, England (c) $40

#71851, Quartz, Calcite, Sphalerite, West Cumberland Iron Mining District, England (c) $175

#71870, Sphalerite and Quartz, Shuikoushan Mine, China (m) $32

#71906, Calcite, Sphalerite, Quartz, Krushev Dol Mine, Bulgaria (c) $135

#75287, Calcite (butterfly-twinned crystals) with Stibnite inclusions, Xikuangshan Mine, China (c) $375

#75492, Acanthite with wire crystals of Native Silver, Xiaoqinggou, China (m) $165

#73781, Galena with Sphalerite in marble, Lime Crest Quarry (Limecrest), Sussex Mills, New Jersey (lc) $85

#70849, Pyrite and Quartz, (Tsuchiya-Ishizaki Mine?), Japan (lc) $550

#72921, Pyrite, Route 81 roadcut, south of Syracuse, New York (lc) $400

#73968, Pyrite on Hematite, Miniera di Rio Marina, Isola d'Elba, Italy (m) $125

#73787, Galena with minor Sphalerite in marble, Lime Crest Quarry (Limecrest), Sussex Mills, New Jersey (lc) $55

#73439, Sphalerite, Quartz, Johannsenite, Deveti Septemvri Mine, Mogilata ore body, Bulgaria (lc) $175

#74096, Siderite, Muscovite, Pyrite over Ferberite, Panasqueira Mine, Portugal (c) $125

#74751, Chalcopyrite on Fluorite, Seata Mine, Aysgarth, England (lc) $375

#73319, Pyrite and Calcite, Bull's Ferry Road condominium construction site, New Jersey (lc) $250

#73782, Galena with Sphalerite in marble, Lime Crest Quarry (Limecrest), Sussex Mills, New Jersey (lc) $55

#73783, Galena with Sphalerite in marble, Lime Crest Quarry (Limecrest), Sussex Mills, New Jersey (lc) $75

#73786, Galena with Sphalerite in marble, Lime Crest Quarry (Limecrest), Sussex Mills, New Jersey (lc) $50

The chalcocite below, from Chimney Rock Quarry, is from my private collection

This chalcocite from the Chimney Rock Quarry is an important museum-quality mineral specimen that I acquired for my private collection many years ago. To the best of my knowledge, this is the largest and finest chalcocite specimen every collected at Chimney Rock. This quarry has not been accessible to collectors for the last 25+ years. Chalcocite, a rare mineral in New Jersey trap rock quarries, occurs at the boundary of two rock formations, where copper-rich solutions encounter impermeable layers above, causing copper minerals to precipitate, followed by late-forming calcite.

The ONLY reason I am selling this specimen is that it is too large for my display case.

I highly recommend this, without reservation, for collectors of top-quality minerals.

#73189, Chalcocite in Calcite, Chimney Rock Quarry, Bound Brook, New Jersey (lc) $3500

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