- MD-237459
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.7 x 3.5 x 1.8 cm
SOLD
- MD-240532
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 9.2 x 5.7 x 3.0 cm
SOLD
- MD-278379
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.6 x 3.1 x 2.7 cm
SOLD
- MD-214892
- Opal
- Bare Mountain District (Fluorine District), Nye Co., Nevada, USA
- Small Cabinet
- 9.0 x 6.7 x 3.1 cm
SOLD
- MD-271419
- Precious Opal (Var: Boulder Opal)
- Quilpie, Queensland, Australia
- Small Cabinet
- 7.8 x 6.3 x 2.4 cm
SOLD
- MD-258216
- Precious Opal (Var: Boulder Opal)
- Quilpie, Queensland, Australia
- Cabinet
- 11.2 x 5.2 x 3.0 cm
SOLD
- MD-139147
- Opal (Var: Fire Opal)
- Rodriguez Dam, Tijuana, Mun. de Tijuana, Baja California Norte, Mexico
- Miniature
- 4.0 x 3.9 x 2.6 cm
SOLD
- MD-114268
- Opal (Var: Fire Opal)
- Cobano Mine, El Salvador, Mun. de San Cristobal de la Barranca, Jalisco, Mexico
- Small Cabinet
- 5.2 x 5.1 x 2.9 cm
SOLD
- MD-146058
- Opal
- Rodriguez Dam, Tijuana, Mun. de Tijuana, Baja California Norte, Mexico
- Small Cabinet
- 7.2 x 4.8 x 1.9 cm
SOLD
- MD-38409
- Opal
- Chihuahua, Mexico
- Small Cabinet
- 6.3 x 5.9 x 3.3 cm
SOLD
- MD-168642
- Opal
- Jalisco, Mexico
- Miniature
- 3.9 x 2.9 x 2.4 cm
SOLD
- MD-213176
- Opal
- Three Forks Placer, Gallatin Co., Montana, USA
- Cabinet
- 9.4 x 8.5 x 4.5 cm
SOLD
- MD-41395
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.3 x 3.5 x 3.1 cm
SOLD
- MD-53818
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 5.7 x 3.6 x 2.5 cm
SOLD
- MD-54553
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 5.3 x 4.8 x 3.3 cm
SOLD
- MD-118470
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 5.2 x 5.0 x 3.5 cm
SOLD
- MD-119956
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 9.2 x 7.8 x 5.4 cm
SOLD
- MD-131905
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 6.6 x 4.4 x 2.7 cm
SOLD
- MD-143037
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.6 x 4.5 x 3.2 cm
SOLD
- MD-180906
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Small Cabinet
- 6.5 x 5.0 x 3.5 cm
SOLD
- MD-39563
- Opal
- Lightning Ridge, Finch Co., New South Wales, Australia
- Small Cabinet
- 5.6 x 4.5 x 3.2 cm
SOLD
- MD-156162
- Opal
- Lightning Ridge, Finch Co., New South Wales, Australia
- Small Cabinet
- 6.7 x 5.9 x 3.9 cm
SOLD
- MD-216616
- Opal
- Winton, Queensland, Australia
- Cabinet
- 14.5 x 5.6 x 3.3 cm
SOLD
- MD-44351
- Opal
- Coober Pedy, Coober Pedy - Everard Range Regions, South Australia, Australia
- Miniature
- 4.5 x 3.8 x 2.0 cm
SOLD
97-120 of 175 Items