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themineralogist:(via Baryte from Clara Mine, Germany)

themineralogist:Zoisite (variety of Tanzanite)

themineralogist:Opal Aura Quartz with Lemurian terminations from...

themineralogist:(via Chalcedony (Var: Agate) from Czech...

themineralogist:i bet you haven’t seen it like thisQuartz (by...

themineralogist:Copper from France (by Pascale & Daniel...

themineralogist:Opalized belemnites (fossilized cephalopods which resembled squids) from Australia (

themineralogist:Clinoclase and OliveniteThe clinoclase aggregates are blue and are approximately 1&n

themineralogist: Quartz with Hematite inclusions by A. Tuma

themineralogist:Cuprite (by yaiba0390)

themineralogist:Large biotite aggregate

themineralogist:Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist:Aquamarine from the Delaware Mineralogical Museum. The curator insists that despite

themineralogist:Covellite with patina coating from Montana (by Andy Seibel)

themineralogist:Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist:Large biotite aggregate

themineralogist:Covellite with patina coating from Montana (by Andy Seibel)

themineralogist:Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist:Quartz with Hematite inclusions by A. Tuma

themineralogist:Azurite (by josminer62)

themineralogist:Aquamarine from the Delaware Mineralogical Museum. The curator insists that despite

themineralogist: Ametrine - variety of quartz with amethyst and citrine

themineralogist:Ethiopian Phantom Opal

themineralogist:Large biotite aggregate

themineralogist: Cuprite (by yaiba0390)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Agate macro

themineralogist: Large biotite aggregate

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Large biotite aggregate

themineralogist: Large biotite aggregate

themineralogist: Large biotite aggregate

themineralogist: White sprays of Saponite are perched on green Quartz crystals. The green color of t

themineralogist:Ajoite in Quartz

themineralogist: Large biotite aggregate

themineralogist: Large biotite aggregate

themineralogist: Aquamarine from the Delaware Mineralogical Museum. The curator insists that despite

themineralogist: Cuprite (by yaiba0390)

themineralogist: Calcite tablets on apatite needle

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: (via Spessartine from Pakistan) “The white lines at the edges of this kind of

themineralogist: Fluorescent calcite crystals nucleated on tiny spherical nodules of black manganese

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Aquamarine from the Delaware Mineralogical Museum. The curator insists that despite

themineralogist: Fluorescent calcite crystals nucleated on tiny spherical nodules of black manganese

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Baryte from Germany

themineralogist: Large biotite aggregate

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Large biotite aggregate

themineralogist: Large biotite aggregate

themineralogist: Large biotite aggregate

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist:Goethite in QuartzVery small spheres of yellow iridescent goethite included in quart

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Aragonite

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Azurite (by Kotomicreations)

themineralogist: Dissolution textures in Sulfur (by Xiao-dong Xu)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Large biotite aggregate

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Variscite

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Large biotite aggregate

themineralogist: Macro of Opal

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Fluorescent calcite crystals nucleated on tiny spherical nodules of black manganese

themineralogist: Cuprite (by yaiba0390)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Large biotite aggregate

themineralogist: Quartz over Chrysocolla on limonite matrix

themineralogist: Fluorescent calcite crystals nucleated on tiny spherical nodules of black manganese

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist:Macro of Agate (by Lostash)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Smithsonite crystal in Chalcedony geode (by howie516)

themineralogist: Cuprite (by yaiba0390)

themineralogist: Opalized belemnites (fossilized cephalopods which resembled squids) from Australia

themineralogist: Large biotite aggregate

themineralogist: White sprays of Saponite are perched on green Quartz crystals. The green color of t

themineralogist: White sprays of Saponite are perched on green Quartz crystals. The green color of t

themineralogist: Quartz (by Orbital Joe)

themineralogist: Covellite with patina coating from Montana (by Andy Seibel)

themineralogist: Macro of Opal

themineralogist: Cuprite (by yaiba0390)

themineralogist: Fluorescent calcite crystals nucleated on tiny spherical nodules of black manganese