John Betts-Fine Minerals Online Mineral Museum

Index of 217 "O" Minerals With Images
[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O Minerals] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]
Oboyerite, Jarosite, Rodalquilarite Obradovicite with Jarosite, Quartz Obradovicite, Jarosite, Wulfenite, Quartz Obsidian Obsidian var. Apache Tear (5) Obsidian var. Apache Tears (2) Obsidian with Cristobalite Obsidian with Cristobalite inclusions (Snowflake Obsidian) (4) Offretite - Erionite Ohmilite Okaite (feldspathoidal ultramafic igneous rock) Okanoganite-(Y) and Arfvedsonite Okenite (12) Okenite and Gyrolite (3) Okenite and Gyrolite on Quartz Okenite and Quartz Okenite in Calcite Okenite on Amethyst Quartz Okenite on Gyrolite Okenite on Laumontite Okenite on Prehnite (3) Okenite on Prehnite with Apophyllite Okenite on Quartz Okenite on Quartz var. Amethyst Okenite on Quartz with Calcite Okenite with Gyrolite on Quartz Okenite with Prehnite Okenite, Apophyllite, Prehnite Okenite, Apophyllite, Quartz Okenite, Apophyllite, Quartz, Gyrolite Okenite, Calcite, Gyrolite Okenite, Gyrolite, Laumontite Okenite, Prehnite, Apophyllite Olekminskite (2) Oligoclase, Calcite, Quartz Oligoclase, Sphalerite, Pyrite (2) Olivenite (18) Olivenite and Cornwallite on Quartz Olivenite and Malachite (3) Olivenite and Smithsonite Olivenite on Calcite Olivenite on Quartz (2) Olivenite var. Leucochalcite Olivenite with Bayldonite Olivenite, Duftite, Cuproadamite Olivine Olmiite (37) Olmiite and Bultfonteinite (2) Olmiite and Calcite on Mn-oxide Olmiite on Calcite (6) Olmiite on Celestine Olmiite on Hematite Olmiite on Oyelite and Calcite Olmiite with Calcite Olmiite with Calcite and Oyelite Olmiite with minor Calcite Olmiite with Oyelite (5) Olmiite with Oyelite and Calcite Olmiite-Poldervaartite on Hematite Olshanskyite Onoratoite (2) Opal (76) Opal (Common) (5) Opal (elongated oval cabochon) Opal (Fire Opal doublet) Opal (Fire Opal) (3) Opal (fluorescent) (7) Opal (irregular cabochon) Opal (irregular oval cabochon) Opal (laminated doublet) Opal (Precious Opal) (13) Opal (triplet of laminated boulder opal and glass) Opal (var. Crystal Fire Opal) (11)	Opal (var. Fire Opal Hydrophane) (6) Opal (var. Hydrophane Fire Opal) Opal - two matched nodule halves Opal in matrix Opal pseudomorph after Aragonite Opal pseudomorph after Clam (var. Opalized Clam) Opal pseudomorphs after Serandite Opal var. Boulder Opal (12) Opal var. Cacholong Opal Opal var. Common Opal (3) Opal var. Common Opal (fluorescent) Opal var. Crystal Fire Opal Opal var. Crystal Fire Opal (cabochon and rough) (2) Opal var. Diatomaceous Earth Opal var. Fiorte Opal var. Fire Opal (9) Opal var. Geyserite Opal var. Hyalite (37) Opal var. Hyalite on Albite (3) Opal var. Hyalite on Albite, Spessartine Garnet, Smoky Quartz Opal var. Hyalite on Topaz with Rutile inclusions Opal var. Hyalite Opal (with 0.25 carat gemstone) Opal var. Jelly Opal Opal var. Opalized Clam (2) Opal var. Opalized Wood (4) Opal var. Precious Opal (7) Opal var. Precious Opal (Fire Opal) Opal var. Precious Opal with inclusions Opal var. Quincyite Opal Opal with Calcite Opal, Boulder Opal Opal-CT and Quartz var. Chalcedony pseudomorphs after Wavellite (5) Opal-CT and Quartz var. Chalcedony pseudomorphs after Wavellite with Calcite Opal-CT var. Tripoli Opalized Fluorite var. Tiffany Stone (12) Opalized Fluorite var. Tiffany Stone (1 of 3 from same nodule) Opalized Fluorite var. Tiffany Stone (2 of 3 from same nodule) Opalized Fluorite var. Tiffany Stone (3 of 3 from same nodule) Opalized Fossil Bone Opalized Fossil Clam (2) Opalized Tree Root Opalized Wood Opalized Wood - Black Opal Organ Pipe Coral (Tubipora Musica) Orpiment (109) Orpiment and Calcite (3) Orpiment and Realgar (3) Orpiment in Calcite (2) Orpiment in Calcite with Realgar (2) Orpiment on Arsenopyrite Orpiment on Barite (3) Orpiment on Hutchinsonite Orpiment on Pyrite (4) Orpiment on Pyrite with Hutchinsonite Orpiment on Pyrite with Quartz Orpiment with Barite (4) Orpiment with Calcite Orpiment with minor Realgar Orpiment with Realgar (6) Orpiment, Barite, Realgar (2) Orpiment, Calcite, Realgar Orpiment, Hutchinsonite, Barite (2) Orpiment, Pyrite, Quartz Orpiment, Realgar, Pyrite Orthoclase (18) Orthoclase (Baveno Twin) Orthoclase (Baveno- and Manebach-Twinned) Orthoclase (Baveno-Law Twinned) with Chlorite Orthoclase (Baveno-Law Twinned) with Quartz Orthoclase (Baveno-Law Twins) Orthoclase (Carlsbad-Law Twinned) Orthoclase (gem-grade) (3)	Orthoclase and Quartz with Chlorite coating Orthoclase and Smoky Quartz Orthoclase on Microcline (Baveno Law Twin) Orthoclase pseudomorph after Leucite (2) Orthoclase var. Adularia (23) Orthoclase var. Adularia (V-twinned) Orthoclase var. Adularia on Datolite with Stilpnomelane Orthoclase var. Adularia on Prehnite and Datolite Orthoclase var. Adularia on Quartz (2) Orthoclase var. Adularia on Smoky Quartz Orthoclase var. Adularia pseudomorph after Childrenite Orthoclase var. Adularia pseudomorphs after Heulandite or Glauberite (2) Orthoclase var. Adularia twinned crystals with Chlorite coating Orthoclase var. Adularia Twins (2) Orthoclase var. Adularia Twins with Chlorite Orthoclase var. Adularia with Actinolite and Clinozoisite-Epidote Orthoclase var. Adularia with Actinolite var. Byssolite and Chlorite Orthoclase var. Adularia with Albite and Chlorite Orthoclase var. Adularia with Chlorite (10) Orthoclase var. Adularia with Chlorite and Apatite Orthoclase var. Adularia with Chlorite and Titanite Orthoclase var. Adularia with Chlorite coating (8) Orthoclase var. Adularia with Chlorite inclusions (2) Orthoclase var. Adularia with Clinochlore Orthoclase var. Adularia with minor Chlorite Orthoclase var. Adularia with Smoky Quartz (2) Orthoclase var. Adularia, Goethite pseudomorphs after Pyrite, Andradite Garnet Orthoclase var. Adularia, Quartz, Muscovite Orthoclase var. Amazonite Carlsbad Twin Orthoclase var. Baveno Twin Orthoclase var. Baveno-law twin with Quartz Orthoclase var. Baveno-Twin with Quartz Orthoclase var. Carlsbad Twin (7) Orthoclase var. Carlsbad Twins Orthoclase var. Carlsbad-twin Orthoclase var. Carlsbad-twins Orthoclase var. Loxoclase Orthoclase var. Manebach Twin with Smoky Quartz Orthoclase var. Moonstone with Actinolite Orthoclase var. Sanidine Orthoclase var. Sunstone Orthoclase var. Valencianite (2) Orthoclase var. Valencianite Adularia Orthoclase var. Valencianite with Calcite var. Argentine Orthoclase with Hyalite Opal (2) Orthoclase with Muscovite Orthoclase with Quartz Orthoclase with Rutile inclusions Orthoclase with Smoky Quartz Orthoclase, Carlsbad-twin Orthoclase, Quartz, Muscovite Orthoclase, Schorl Tourmaline, Almandine, Quartz Orthoclase, Smoky Quartz, Lepidolite, Cookeite, Elbaite Orthoclase-Microcline Osarizawaite (2) Osarizawaite with Cerussite Osmium Osmium var. Iridosmine (2) Osmium var. Osmiridium (8) Osumilite and Phlogopite (micromount) Osumilite on Tridymite (2) Otavite Otavite inclusions in Smithsonite Otavite, Mimetite, Cerussite, Aragonite var. Tarnowitzite Ottrelite Ourayite Ovamboite in Germanite-Renierite matrix Oxalic Acid Crystals (Synthetic) (2) Oxykinoshitalite (IMA 2004-013) Oyelite on Calcite (2) Oyster Shells Ozokerite (mixture of hydrocarbons)

Mineral Museum Image Index

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