#73964, Epidote (contact-twinned), Alchuri, Shigar Valley, Pakistan (m) $150

#72969, Topaz (with unusual healed fracture), Dassu, Shigar Valley, Pakistan (m) $350

#75067, Magnetite exhibiting rare cubic habit (set of 10 crystals), ZCA Mine No. 4, Fowler Ore Body, 2500' Level, New York (t) $34

#73754, Copper (naturally crystallized Spinel-Law twinned native copper crystals), Itauz Mine, Kazakhstan (t) $45

#71651, Quartz var. Smoky Quartz (Dauphiné Law Twinned), Moat Mountain, west of North Conway, New Hampshire (m) $28

#75219, Quartz var. Ametrine (rare combination of amethyst and citrine), Anahi Mine, Bolivia (c) $295

#73884, Cerussite with minor Dolomite, Chantier des Dalles, Mibladen, Morocco (m) $85

#75048, Cerussite and Malachite, Tsumeb Mine, Namibia (m) $150

#75082, Beryl var. Cat's-Eye Aquamarine, Brazil (t) $325

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

#73808, Calcite (contact-twinned) on Calcite with Limonite coating, Daye, Huangshi, China (c) $150

#71698, Malachite (polished slice of concentric growth malachite), Kolwezi District, Democratic Republic of the Congo (m) $55

#75037, Quartz var. Amethyst (scepter-shaped crystals), Goboboseb Mountains, Namibia (c) $275

#73949, Cerussite (trilling-twinned crystals) with Duftite and Malachite, Tsumeb Mine, 3rd Oxide Zone, Namibia (t) $225

#75069, Magnetite exhibiting rare cubic habit (set of 10 crystals), ZCA Mine No. 4, Fowler Ore Body, 2500' Level, New York (t) $32

#75601, Azurite (contact-twinned crystals), Tsumeb Mine, Easter Pocket, Namibia (t) $195

#75068, Magnetite exhibiting rare cubic habit (set of 10 crystals), ZCA Mine No. 4, Fowler Ore Body, 2500' Level, New York (t) $30

#71649, Quartz var. Smoky Quartz (Dauphiné Law Twinned), Moat Mountain, New Hampshire (m) $30

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

#72973, Calcite (complex penetration twins), Sokolovskiy-Sarbaiskiy Mine, Kazakhstan (m) $125

#71953, Cerussite twinned crystals, Tsumeb Mine, Namibia (m) $95

#71657, Quartz var. Smoky Quartz (Dauphiné Law Twinned), Moat Mountain, New Hampshire (m) $35

#71927, Calcite, Baia Sprie (Felsöbánya), Romania (c) $135

#71370, Quartz var. Smoky Quartz (Dauphiné Law Twins) on Microcline, Moat Mountain, west of North Conway, New Hampshire (c) $55

#73502, Schorl Tourmaline (doubly terminated distorted crystal), Lavra do Escondido, Brazil (m) $28

#74099, Calcite (twinned crystals) with Stilbite and Apophyllite, Fanwood Quarry (Weldon Quarry), Watchung, New Jersey (c) $30

#71682, Quartz var. Smoky Quartz (Dauphiné-law twin) with Microcline inclusions, Moat Mountain, west of North Conway, New Hampshire (m) $35

#75045, Cerussite (sixling-twinned crystals) on Tennantite, Tsumeb Mine, 3rd Oxide Zone, Namibia (t) $175

#73359, Quartz var. Tessin habit with Magnesite, Becker Quarry, West Willington, Connecticut (m) $75

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

#73358, Quartz var. Tessin habit with Ankerite and Muscovite, Becker Quarry, West Willington, Connecticut (m) $65

#75600, Azurite (twinned crystals) with Anglesite, Tsumeb Mine, Easter Pocket, Namibia (m) $175

#71659, Quartz var. Smoky Quartz, Moat Mountain, New Hampshire (m) $32

#75066, Magnetite exhibiting rare cubic habit (set of 10 crystals), ZCA Mine No. 4, Fowler Ore Body, 2500' Level, New York (t) $30

#73744, Quartz var. Smoky Quartz (Dauphiné-law twins) on Microcline, Moat Mountain, west of North Conway, New Hampshire (c) $55

#71392, Calcite (twinned crystals) with Stilbite and Apophyllite, Fanwood Quarry (Weldon Quarry), Watchung, New Jersey (c) $36

#72914, Datolite nodules with Hematite and Copper inclusions (plus 3 cabochons), Michigan (c) $400

#46640, Calcite (twinned crystals), Roosevelt Avenue Quarry (York Stone Quarry), Pennsylvania (lc) $350

#75233, Cerussite (trilling) with Hydrocerussite coating plus Calcite, Tsumeb Mine, Lead Pocket, Namibia (m) $425

#75257, Topaz (unusual compound gem-grade crystal), Mimoso do Sul, Brazil (c) $550

#73443, Azurite (twinned crystals) with minor Cerussite, Tsumeb Mine, Easter Pocket, Namibia (m) $400

#75244, Azurite and Malachite, Milpillas Mine, Mexico (m) $425

#73029, Quartz (with two pairs of Japan-Law Twinned crystals), Llallagua Mine (Siglo XX Mine), Bolivia (c) $400

#73653, Calcite with Fluorite, Denton Mine, Illinois (m) $450

#74728, Azurite (contact-twinned crystals), Tsumeb Mine, Easter Pocket, Namibia (m) $750

#74744, Gold (naturally crystallized twinned native gold), Mount Kare Mine, Papua New Guinea (t) $675

#75184, Quartz var. Amethyst Quartz, Goboboseb Mountains, Namibia (m) $400

#75084, Spessartine Garnet, Lavra Navegadora, Brazil (m) $450

#75342, Diamond (3.11 carat sector-zoned octahedral brown polished crystal), Murowa Mine, Zimbabwe (t) $5815

#70587, Quartz var. Ametrine Quartz (rare combination of amethyst and citrine), Anahi Mine, Bolivia (c) $375

#75341, Diamond (4.95 carat sector-zoned octahedral brown polished crystal), Murowa Mine, Zimbabwe (t) $9255

#75574, Calcite (twinned crystals), Roosevelt Avenue Quarry (York Stone Quarry), Pennsylvania (c) $500

#65741, Diamond (4.89 carats four polished slices from a single crystal with sector-zoned inclusions ), Zimbabwe (t) $4395

#65742, Diamond (3.31 carats four polished slices from a single crystal with sector-zoned inclusions), Zimbabwe (t) $2995

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