PAGE 1: ROW 1: Actinolite, Adamite, Aegirine, Afghanite, Agate, Agrellite, Albite, Alexandrite, Alunite, Amblygonite ROW 2: Ametrine, Amethyst, Analcime, Anatase, Andalusite, Andesine, Anglesite, Anhydrite, Annabergite ROW 3: Antigorite, Aquamarine, Apophyllite, Apatite, Aragonite, Arfvedsonite. Astrophyllite, Atacamite, Austinite, Axinite ROW 4: Azurite, Baryte, Bastnaesite, Bayldonite, Benitoite, Beryl, Beryllonite, Beudantite, Biotite ROW 5: Boleite, Boracite, Bornite, Bowenite, Brazilianite, Bronzite, Brookite, Brucite, Bustamite, Bytownite ROW 6: Calcite, Caledonite, Cancrinite, Carletonite, Carnallite, Carnelian, Cassiterite, Cavansite, Celestite ROW 7: Cerussite, Chabazite, Chalcopyrite, Chambersite, Charlesite, Charoite, Childrenite, Chloromelanite, Chondrodite, Chromite ROW 8: Chrysoberyl, Chrysocolla, Chrysotile, Cinnabar, Citrine, Clinochlore, Clinohumite, Clinozoisite, Clintonite ROW 9: Cordierite, Corundum, Covellite, Creedite, Cryolite, Cuprite, Danburite, Diamond, Diaspore ROW 10: Diopside, Dioptase, Dolomite, Dravite, Dumortierite, Elbaite, Emerald, Enstatite, Eosphorite ROW 11: Epidote, Erythrite, Esperite, Ettringite, Eudialyite, Fayalite, Ferroaxinite, Feldspar, Fluorapatite, Fluorapophyllite ROW 12: Fluorite, Forsterite, Friedelite, Gahnite, Garnet, Gaspeite, Gaylussite, Gibbsite, Glaucophane PAGE 2: ROW 1: Goethite, Goosecreekite, Grandidierite, Gypsum, Gyrolite, Hackmanite, Halite, Hambergite, Hanksite, Hardystonite ROW 2: Hauyne, Hematite, Hemimorphite, Herderite, Hexagonite, Hibonite, Hiddenite, Hodgkinite, Humite ROW 3: Hypersthene, Inderite, Indialite, Iolite, Jadeite, Jasper, Jeremejevite, Kainite, Kornerupine, Kunzite ROW 4: Kutnohorite, Kurnakovite, Kyanite, Langbienite, Lapis Lazuli, Larimar, Lawsonite, Lazurite, Legrandite ROW 5: Lepidolite, Leucite, Leucophanite, Linarite, Lizardite, Londonite, Ludlamite, Magnesite, Malachite, Marialite ROW 6: Meionite, Milarite, Mimetite, Moissanite, Moonstone, Mottramite, Muscovite, Musgravite, Narsarsukite ROW 7: Natrolite, Nepheline, Neptunite, Nickeline, Nuummite, Olenite, Opal, Papagoite, Pargasite, Pectolite ROW 8: Peridot, Periclase, Petalite, Pezzottaite, Phenakite, Phlogopite, Phosgenite, Phosphosiderite, Piemontite ROW 9: Pietersite, Plumbogummite, Pollucite, Polyhalite, Poudretteite, Prasiolite, Prehnite, Priceite, Prismatine, Proustite ROW 10: Pumpellyite, Purpurite, Pyrite, Pyrargyrite, Pyromorphite, Pyrrhotite, Quartz, Rhodizite, Rhodochrosite ROW 11: Richterite, Riebeckite, Rosasite, Rose Quartz, Ruby, Rutile, Sapphire, Scapolite, Scheelite, Scolecite ROW 12: Scorodite, Selenite, Sellaite, Senarmontite, Seraphinite, Seraphinite, Serendibite, Serpentine, Shattuckite PAGE 3: ROW 1: Shigaite, Shortite, Shungite, Siderite, Sillimanite, Sinhalite, Smaragardite, Smithsonite, Sodalite, Spessartite ROW 2: Spinel, Spodumene, Stichtite, Staurolite, Stolzite, Sugilite, Sulfur, Svabite, Sylvite ROW 3: Taaffeite, Talc, Tantalite, Thalenite-(Y), Thompsonite, Thaumasite, Tinaksite, Titanite, Topaz, Tourmaline ROW 4: Tremolite, Tugtupite, Turquoise, Vanadinite, Variscite, Vayrynenite, Vesuvianite, Villiaumite, Vlasovite ROW 5: Wavellite, Weberite, Weloganite, Willemite, Wulfenite, Xonotlite, Zektzerite, Zeolite, Zincite, Zinnwaldite ROW 6: Zircon, Zoisite
Right to go to the next page, left to go to the previous. If any two gemstones look similar, let me know! (I may make this into a series if there's enough demand, although 278 gems would be hard to keep track of.)