Gift certificates in any amount.

#64909, Elbaite Tourmaline, Mount Mica, Maine (t) $250

#58459, Pyrite, Quiruvilca District, Peru (c) $110

#64339, Fluorite with Quartz, Caravia-Berbes District, Spain (c) $150

#65797, Gypsum (twinned crystals), Red River Floodway, Winnipeg, Canada (c) $125

#55134, Fluorite, Xianghualing Cassiterite Mine, China (c) $135

#65851, Pyromorphite, Mina Resuperferolítica, Spain (c) $38

#51501, Cassiterite on Muscovite, Tenkerchin (Tenkergin) Mine, Russia (m) $225

#56130, Microcline (Baveno Law twin), Moat Mountain, west of North Conway, New Hampshire (c) $85

#59896, Hematite pseudomorphs after Magnetite (var. Martite), Twin Peaks, Utah (c) $75

#49342, Sphalerite, Elmwood Mine, Tennessee (c) $75

#60209, Ilvaite with Quartz, Huanggang Mine, Inner Mongolia, China (c) $150

#65774, Calcite (twinned crystals), Elmwood Mine, Tennessee (c) $95

#64782, Malachite, Kolwezi District, Democratic Republic of the Congo (c) $150

#62285, Silver (crystallized), White Pine Mine, Michigan (t) $150

#58539, Barite, Settlingstones Mine, England (c) $95

#59228, Calcite, Recsk, Mátra Mountains, Hungary (c) $115

#65860, Prehnite, Cerro de las Culebras, Spain (c) $48

#57562, Sphalerite, Fluorite, Pyrite on Dolomite, Dodds Pocket, Smallcleugh Mine, England (c) $48

#55127, Calcite (twinned crystals), Holbrook Shaft, Copper Queen Mine, Bisbee, Arizona (c) $65

#57987, Stilbite on Quartz, Aurangabad, India (c) $40

#58015, Calcite, Mojina Mine, Mexico (c) $25

#58139, Fluorite (interpenetrant-twinned crystals), Heights Mine, Westgate, England (c) $85

#61536, Halite, Intrepid Potash Mine, New Mexico (m) $30

#54478, Sphalerite (Spinel-law Twinned), Second Sovietskiy Mine, Dalnegorsk, Russia (c) $135

#59533, Andradite Garnet (Yttrium-rich), Mina La Prieta Linda, Mexico (c) $150

#64418, Fluorite, Rock Candy Mine, Canada (c) $40

#65857, Calcite and Quartz on limestone, Elmwood Mine, Tennessee (lc) $75

#62896, Prehnite pseudomorphs after Laumontite with Apophyllite, Mumbai (Bombay) District, India (lc) $195

#65931, Calcite, China (lc) $150

#63752, Siderite over Pyrite, Eagle Mine, Gilman, Colorado (lc) $48

#64403, Quartz var. Amethyst with Dolomite, San Juan de las Rayas Mine, Mexico (lc) $125

#62894, Prehnite pseudomorphs after Laumontite with Apophyllite, Mumbai (Bombay) District, India (lc) $195

#64790, Stilbite with minor Quartz, Prospect Park Quarry, New Jersey (lc) $48

#42827, Calcite var. Manganoan Calcite, Erma Reka Mine, Bulgaria (lc) $450

#64409, Mimetite, Santa Eulalia District, Mexico (lc) $55

#65763, Calcite on Quartz, Second Sovietskiy Mine, Dalnegorsk, Russia (lc) $225

#59973, Sphalerite and Galena over Fluorite, Denton Mine, Illinois (lc) $125

#65765, Fluorite, Ganzhou, China (lc) $175

#56180, Smithsonite with minor Galena, Tsumeb Mine, Namibia (lc) $150

#58245, Heulandite on Mordenite, Aurangabad, India (lc) $125

#70237, Mineral Set of 28 Mounted Mineral Specimens from Canada, Canada (t) $300

#70238, Mineral Set of 28 Mounted Mineral Specimens from Mexico and California, Mexico and California (t) $325

#70235, Mineral Set of 28 Mounted Mineral Specimens from Worldwide Locations, Assorted Localities (t) $295

#70236, Mineral Set of 28 Mounted Mineral Specimens from eastern USA, Assorted Localities (t) $295

#62412, Mineral Set of 28 Mounted Uncommon Mineral Specimens, Assorted Localities (t) $495

#70233, Mineral Set of 28 Mounted Mineral Specimens from eastern North America, Assorted Localities (t) $295

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