Opal

3 images
Obsidian
Obsidian
239x178
Okenite radial cluster of fibers with Apophyllite
Okenite radial cluster of fibers with Apophyllite
500x375
Oligoclase
Oligoclase
300x182
Oligoclase variety Sunstone
Oligoclase variety Sunstone
439x392
Olivenite green crust of
Olivenite green crust of
500x439
Olivine
Olivine
245x175
Olivine atomic structure
Olivine atomic structure
300x258
Olivine variety Peridot
Olivine variety Peridot
449x356
Opal variety Fire
Opal variety Fire
400x300
Ordovician limestone with shale
Ordovician limestone with shale
396x783
Orpiment
Orpiment
300x193
Orpiment crystal cluster
Orpiment crystal cluster
481x361
Orpiment monoclinic arsenic sulfide
Orpiment monoclinic arsenic sulfide
388x278
Orthoclase
Orthoclase
106x175
Orthoclase Carlsbad twinning
Orthoclase Carlsbad twinning
460x449
Orthoclase variety Adularia with Baveno twinning
Orthoclase variety Adularia with Baveno twinning
352x360
Orthoclase Hornblende
Orthoclase Hornblende
497x435
Osarizawaite Hydrous Lead Copper sulfate
Osarizawaite Hydrous Lead Copper sulfate
540x329
Osarizawaite Hydrous Lead Copper sulfate
Osarizawaite Hydrous Lead Copper sulfate
414x258
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