- MD-146997
- Fire Opal (Var: Precious Fire Opal)
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.5 x 3.6 x 1.8 cm
SOLD
- MD-54893
- Opal (Var: Opal-An)
- Mitchell Co., North Carolina, USA
- Miniature
- 3.3 x 1.9 x 1.8 cm
SOLD
- MD-214888
- Opal (Var: Opal-An), Rhodochrosite, Quartz
- Santa Rita Mine, Morococha District, Yauli Province, Junin Department, Peru
- Cabinet
- 14.3 x 9.5 x 8.5 cm
SOLD
- MD-229624
- Opal (Var: Opal-An)
- Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia
- Small Cabinet
- 7.5 x 6.4 x 5.0 cm
SOLD
- MD-215595
- Opal (Var: Opal-An), Schorl
- Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia
- Cabinet
- 11.3 x 4.5 x 3.2 cm
SOLD
- MD-180893
- Opal (Var: Opal-An), Orthoclase, Schorl
- Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia
- Small Cabinet
- 5.1 x 3.9 x 2.4 cm
SOLD
- MD-118684
- Opal (Var: Opal-An)
- Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia
- Large Cabinet
- 16.0 x 13.0 x 3.5 cm
SOLD
- MD-224120
- Opal (Var: Opal-An)
- Lesbos Island (Nisos Lesvos; Mytilene; Mytilini), Lesvos (Lesbos; Mytilene; Mytilini) Prefecture, Aegean Islands (Aiyaion) Department, Greece
- Small Cabinet
- 8.3 x 4.7 x 3.5 cm
SOLD
- MD-144876
- Opal (Var: Opal-An)
- Hosaka, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
- Small Cabinet
- 8.6 x 6.0 x 5.3 cm
SOLD
- MD-210875
- Opal (Var: Opal-An)
- Valec (Waltsch), Doupov (Duppau), Karlovy Vary Region, Bohemia (Bohmen; Boehmen), Czech Republic
- Small Cabinet
- 5.4 x 4.3 x 3.8 cm
SOLD
- MD-122773
- Opal (Var: Opal-An)
- Valec (Waltsch), Doupov (Duppau), Karlovy Vary Region, Bohemia (Bohmen; Boehmen), Czech Republic
- Miniature
- 4.7 x 4.4 x 3.0 cm
SOLD
- MD-70912
- Opal (Var: Opal-An), Opal
- Valec (Waltsch), Doupov (Duppau), Karlovy Vary Region, Bohemia (Bohmen; Boehmen), Czech Republic
- Miniature
- 4.9 x 4.9 x 3.0 cm
SOLD
- MD-236602
- Opal (Var: Opal-An)
- Squaretop Mountain, Kaimkillenbun, Wambo Shire, Darling Downs-South West Region, Queensland, Australia
- Miniature
- 3.9 x 3.0 x 2.3 cm
SOLD
- MD-120690
- Opal (Var: Opal-An)
- Squaretop Mountain, Kaimkillenbun, Wambo Shire, Darling Downs-South West Region, Queensland, Australia
- Toenail
- 3.0 x 1.8 x 1.4 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-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-258216
- Precious Opal (Var: Boulder Opal)
- Quilpie, Queensland, Australia
- Cabinet
- 11.2 x 5.2 x 3.0 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-214892
- Opal
- Bare Mountain District (Fluorine District), Nye Co., Nevada, USA
- Small Cabinet
- 9.0 x 6.7 x 3.1 cm
SOLD
- MD-278379
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.6 x 3.1 x 2.7 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-237459
- Opal
- Virgin Valley District, Humboldt Co., Nevada, USA
- Miniature
- 4.7 x 3.5 x 1.8 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
121-144 of 174 Items