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Hold down the Ctrl or Shift keys to make multiple selections.  Display records per page Indicate if online images are available       Choose search criteria   Species: (list all) absolite acanthite acmite actinolite actinolite nodules adamite adularia adularia? aegerine aeschynite agardite agate agate filled geode aguilarite aikinite ajoite alabandite albertite albite algodonite allactite allanite allemontite allophane almandine almandite almanine al-serpentine alstonite altaite aluminite aluminum alunite alunogen amazonite amazonstone amber amblygonite amethyst filled geode amethyst geode ammonite amphibole amphibole group amphibole group, unspecified analcime analcite anapaite anatase ancylite andalusite andorite andradite anglesite anhydrite ankerite annabergite anorthite anorthosite anthophyllite antigorite antimony antlerite apache tears apatite apatite series aphthitalite apjohnite apophylite apophyllite apophyllite group apophyllite grouping aporhyolite aragonite aragonite? ardennite arfvedsonite argentite argillite argyrodite arsenic arseniosiderite arsenolite arsenopyrite arthurite artificial artinite asphaltum assay kit astrophyllite atacamite atelestite augelite augite aurichalcite austinite autinite autunite aventurine axinite axinite group azoproite azurite babingtonite bakerite baratovite barite barrandite barthite barysilite barytocalcite basalt bastnaesite bastnaesite-(Ce) bastnasite-(Ce) batisite bauxite bayldonite beaverite bementite benitoite benjaminite benstonite beraunite berthierine berthierite bertrandite beryl beryllonite berzelianite berzeliite beta uranophane betafite betekhtinite bindheimite biotite bismuth bismuthinite bismutite bixbyite bloedite boleite boltwoodite boracite borax borickite bornite boronite botryogen boulangerite boulder bournonite brackebuschite brandtite braunite brazilianite breithauptite brewsterite britholite-(Y) brochantite bromian chlorurgyrite brookite brucite buchite buddingtonite buergerite bustamite cabrerite cacoxenite cacoxinite calaverite calciovolborthite calcite calcite (sand) calcite(breccia) calcozincite (?) caledonite callaghanite calomel calumetite cancrinite carborundum carnallite carnotite carpholite carrolite carrollite carving caryinite cassiterite catapleiite cavancite cavansite celestine celestite celestite** cerite cerussite cerussite (sixling) cervantite cesium kupletskite chabazite chabourneite chalcanthite chalcedony chalcocite chalcophanite chalcophyllite chalcopyrite chalcopyrtie chalcosiderite chalcostibite chalcotrichite chaleauthite chalk chamosite charcoal charoite chert chervetite chevkinite childrenite chiolite chloanite chloanthite chlorargyrite chlorite chlorite group chloritoid chloropal chlorophoenicite chondrodite chonicalcite chrome ore chromite chrysacolla chrysoberl chrysoberyl chrysocolla chrysolite chrysotile chrystobalite spherules cinnabar claedanite clarkeite clausthalite clay clinochlore clinoclase clinoclhore clinohumite clinoptilolite clinozoisite clintonite clintoptilolite coal coalingite cobaltite cobaltite replica coeruleolactite colemanite collinsite collyrite coloradoite columbite columbite group concretion concretions cone-in-cone conglomerate conichalcite connarite connellite cookeite copal copiapite copper copper crystals coquimbite coral cordierite corkite cornetite cornubite cornwallite corundum corynite cosalite cotunnite covellite cowlesite crandallite creaseyite creedite crestimoreite crestmoreite cristobalite cristobelite crocidolite crocoite cronstedite cronstedtite crookesite cryolite cryophyllite cubanite cubic zirconia cumengite cummingtonite cuprian smithsonite cuprite cuproadamite cuprodesclosite cuprosklodowskite curved mica cyanotrichite cylindrite cyrtolite dachiardite dadsonite damourite danalite danburite datolite davidite davidite-(La) dawsonite desautelsite descloisite descloizite desclolite devilline deweylite diabase diaboelite diaboleite diadochite diamond diaphorite diaspore dickite dietrichite dihydrite dioipside diopside dioptase diorite dixenite dolomite domeykite dravite dravite, magnesian tourmaline dufrenite dufrenoysite dufreynosite duftite dumorteirite dumortierite dumurtierite dundasite dysanalyte dyscrasite ecdemite ekanite elbaite embolite emerald emplectite enargite endlichite enstatite enstatite hypersthene eosphorite ephesite epidedymite epidote epidote (granite epistilbite epsomite ericaite erinite erionite ernstite erythrite eskolaite esperite essinite essionite, garnet eucairite euchroite euclase eudialyte eulytite euxenite evansite eythrite fairfieldite famatinite faujasite fayalite fedorite feldspar felsite fenaksite ferberite ferberite pseudo fergusonite ferrierite ferrimolybdite ferroaxinite ferro-axinite ferro-manganese ferro-vanadium fersmanite fibroferrite flint flourite fluellite fluoborite fluocerite fluorapatite fluorapophyllite fluorapophyllte fluoraptite fluorescent fluorite fluor-richterite fluorspar (huorescent) foresterite forsterite franckeite franklinite freibergite fuchsite gabbro gadolinite gahnite galena galenobismutite ganomalite ganophylite garnet garnet & tourmaline garnet (epidote) garnet and apatite crystals garnet family garnet in hornblende garnet, grossulerite garnets garnierite gaylussite gay-lussite gearksutite gedrite gehlenite gem tree genthelvite genthite geocronite geode georgeite gersdorffite getchellite geyersite gibbsite gillespite gilsonite ginorite gismondite glaciated glass glauberite glaucocerinite glaucodot glauconite glaucophane gmelinite gneiss goethite gold gold replica golden apatite golden sheen obsidian goosecreekite goudeyite graftonite grahamite granite granodiorite graphite gratonite green opal green zircon crystals greenocite greenockite greenstone griphite grit grossular grossularite grossularite, garnet groutite gruenlingite guanajuatite gypsum gypsum geode gyrolite hackmanite halite halloysite halotrichite haloysite hambergite hancockite hanksite hardystonite harmotome hastingsite hauerite hausmannite hauyne hauynite haynesite hedenbergite hedyphane helvite hematite hemimorphite hemitite hercynite herderite hessite hetaerolite heulandite hibonite hinsdalite hisingerite hodgkinsonite holmquistite holtite homilite honessite hopeite hornblend hornblende hortonolite howieite howlite howlite (secondary) hubnerite huebnerite hulsite humite huntilite hureaulite hutchinsonite hydroboracite hydrocarbon hydrocerussite hydrodelhayelite hydromagnesite hydrotalcite hydroxyapophyllite hydroxylapatite hydrozincite hypersthene idaite idocrase idrialite ilmenite ilsemannite ilvaite indicollite, tourmaline inesite iodyrite iridosmine iron Iron Matte iron ore jacobsite jade jadeite jahnsite jalpaite jamesonite jarosite jasper jaspilite jefferisite jefferisite* jet joacquinite joaquinite johannite jordanite jordonite julgoldite junitoite kainite kalinite kammererite kaolin kaolinite kermesite kernite kieserite kimberlite kinoite kleinite knebelite knoxvilleite koettigite kolbeckite kornellite kornerupine kottigite kovdorskite kramerite krennerite kroehnkite kryzhanovskite ktenasite kunzite kurnakovite kutnahorite kyanite labradorite lanarkite langbanite langbeinite langite lapis lazuli large sheet of mica laumonite laumontite laurionite lava lava (black basalt - scoria) lava (red scoria) lavendulan lawsonbauerite lawsonite lazulite lazurite lead leadhillite legrandite leighonite leightonite leonite lepidocrocite lepidolite leucite leucochalcite leucophane leucophanite leucophoenicite leucophosphite levyne levynite libethenite liddicoatite liebegiate liebethenite liebigite lignite limestone limonite limonite concretion linarite linnaeite lipscombite liroconite liskeardite lithiophilite lithiophorite livingstonite loellingite lombardite lomonosovite loparite lopezite lorandite lorenzenite ludlamite ludwigite luetheite luzonite macfallite mackayite magadtite magnatite magnesioastrophyllite magnesite magnesium magnetite magnetoplumbite mahlmoodite malachite manganaxinite manganese ore manganite mangan-neptunite manganosite manganotantalite manganotantilite marble marcasite margarite marialite mariposite marmatite martite massicot matlockite matulaite mcguinnessite meionite melaheinrichite melanocerite melanophlogite melanotekite melanterite meliphanite mellite mendipite mendozite meneghinite mercury mesitite mesolite meta rhyolite metabasalt metacinnabar metacinnabarite metaheinrichite metahewettite metatorbernite meta-uranocircite meteorite meyerhofferite meyerhofferite ps inyoit miargyrite mica mica schist mica shist mica with rutile inclusions microcline microlite microscope milarite millerite mimetite minium mirabilite miserite mixite mohawkite molybdenite monazite monazite-(Ce) monterey jade monticellite montmorillanite montmorillonite montroseite montroydite mordenite mosandrite moschellandsbergite mottramite mounanaite mud mud cracks mullite murdochite murmanite muscovite nacrite nadorite nagyagite nahcolite nakauriite native copper native mercury native silver natrochalcite natrolite natrolite and benitoite natron natural coke naumannite nenadkevichite neotocite nepheline nephelite nephrite neptunite niccolite nickel nickel-iron nissonite niter nitrobarite nitrocalcite nontronite norbergite noselite novaculite obsidian ocher octahedrite offretite okenite oligoclase olivenite olivine olivinite omphacite onofrite oolite opal opal agate oregon thunder egg orpiment orthocalse orthoclase osumilite otavite pachnolite palermoite pandermite papagoite parabutlerite paradamite paralaurionite paratacamite paravauxite paravauzite paraveatchite parisite parnauite parsettensite pattersonite paulingite pearceite pearlstone peat pebble pectolite pegmatite penninite pentagonite pentlandite percylite periclase pericline peridotite perovskite petalite petrified wood petroleum petzite pharmacolite pharmacosiderite pharmarasiderite pharnalosiderite phenakite phillipsite phlogopite phosgenite phosphoferrite phosphophyllite phosphorite phyllite pickeringite picotite picrolite picromerite piedmontite piemontite pinakiolite pink muscovite pirsonite pisolitic aragonite pistomecite pitchstone plagioclase plagionite plancheite platinum plattnerite plumbomicrolite poldervaartite polianite pollucite polybasite polycrase polydimite polydymite polygorskite polyhalite polylithionite polymignite porphyrite porphyry porphyry dike potash alum powellite prehnite priceite probertite prochlorite protogine prousite proustite pseudoboleite pseudobrookite pseudo-fossil pseudoleucite pseudomalachite psilomelane psuedomalachite pucherite pumice pumpellyite purpurite pyragyrite pyraragyrite pyrargyrite pyrargyrite in ore pyrite pyroaurite pyrochlore pyrochroite pyrolusite pyromorphite pyrope pyrophillite pyrophyllite pyrosmalite pyrostilpnite pyroxene pyroxene group pyroxmangite pyrrhotine pyrrhotite pyrrohtite quartz quartz geode quartz monzonite quartz with chlorite quartzite rain prints raite ralstonite raspite rasvumite realgar redingtonite redledgeite reedmergnerite reevesite rhenite rhocochrosite rhodalite (garnet) rhodanite rhodizite rhodochrosite rhodolite rhodonite rhyolite rhyolite cabachon rhyolite-wonderstone richellite richterite riebeckite rinkite robertsite rockbridgeite rocks rodalquilarite romanechite romeite rosasite roscherite roscoelite roselite rosenhahnite rosickyite rowlandite rubellite rubellite, tourmaline ruby rumpfite rutile rutile ps brookite safflorite sal ammoniac salammoniac saleeite samarskite sand sand concretion sand eroded basalt sandstone sandstone concretion sanidine sapphirine sarkinite sartorite sassolite sauconite scapolite scapolite group scheelite scheererite scherbakovite schirmerite schist scholzite schorl schorlomite schroeckingerite schroeckingorite schwartzembergite scolecite scoria scorodite scrutinyite sediment selenite selenite crystals selensulfur selensulphur sellaite semseyite senarmontite sepiolite septaria septarian septarian nodule septarium serandite serpentine serpierite shald shale shattuckite shist shortite shuiskite sicklerite siderite siegenite siliceous dolite sillimanite silt silver silver spoon simpsonite sinhalite sinkankasite sklodowskite skutterudite slate slickenside slickensides smaltite smithsonite smoky quartz geode sodalite sodalite-polished slab soda-niter sogdianite sonoraite sorbyite spalerite spangolite spencerite sperrylite spessartine spessartite spessartite, garnet sphaerocobaltite sphalerite sphene spinel spinel crystals spodumeme crystals spodumene stannite staurolite steacyite steenstrupine steenstrupine-(Ce) stellarite stellerite stepanite stephanite stetefeldite stibarsen stibicojite stibiconite stibiotantalite stibnite stichtite stilbite stilbite and heulandite crysta stillwellite-(Ce) stilpnomelane stolzite strengite