List of minerals O (complete)

This list includes those recognised minerals beginning with the letter O. The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date. This list contains a mixture of mineral names that have been approved since 1959 and those mineral names believed to still refer to valid mineral species (these are called "grandfathered" species).

The list is divided into groups:

• Introduction • (Main synonyms)
• A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P–Q • R • S • T • U–V • W–X • Y–Z

The data was exported from mindat.org on 29 April 2005; updated up to 'IMA 2013'.

The minerals are sorted by name with the year of publication (if it's before of an IMA approval procedure), followed by the IMA approval and the Nickel–Strunz code. The first link is to mindat.org, the second link is to webmineral.com, and the third is to the Handbook of Mineralogy (Mineralogical Society of America).

• Abbreviations:
  • "*" – discredited (IMA/CNMNC status).
  • "s.p." – special procedure.
  • ^Q or "?" – questionable/ doubtful (IMA/CNMNC, mindat.org or mineralienatlas.de status).
  • ^N – published without approval of the IMA/CNMNC, or just not an IMA approved mineral but with some acceptance in the scientific community nowadays.
  • ^I – intermediate member of a solid-solution series.
  • ^H – hypothetical mineral (synthetic, anthropogenic, etc.)
    • ^ch – incomplete description, hypothetical solid solution end member.
  • group – a name used to designate a group of species, sometimes only a mineral group name.
  • no – no link available.
  • IUPAC – chemical name.
  • Rd or red. – redefinition of ...
  • Y: 1NNN – year of publication.
  • Y: old – known before publications were available.

O

Olivenite (dark olive-green) and Malachite (light green), Tsumeb mine, Namibia. Size: 4.8 x 2.0 x 1.0 cm.

Olmiite. N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa.

Opal, central Queensland, Australia. Size 11.0 x 7.2 x 4.8cm.

Orpiment, Jiepaiyu Mine, Shimen County, China. Size: 6.4 x 3.9 x 3.4 cm.

Orthoclase. Zinnenthal, Switzerland.

1. Oboyerite (1979-009) 04.JN.25
2. Obradovicite 07.GB.40
   1. Obradovicite-KCu (1978-061, IMA 2010-E) 07.GB.40
   2. Obradovicite-NaCu (2011-079) 07.GB.40 [no] [no]
   3. Obradovicite-NaNa (2011-046) 07.GB.40 [no] [no]
3. O'danielite (1979-040) 08.AC.10
4. Odinite (1988-015) 09.ED.05
5. Odintsovite (1994-052) 09.CJ.50 [no]
6. Oenite (1995-007) 02.EB.10f
7. Offretite (Y: 1969, 1997 s.p.) 09.GD.25
8. Oftedalite (2003-045a) 09.CM.05 [no]
9. Ogdensburgite (1980-054) 08.DC.57
10. Ohmilite (1974-031) 09.DH.10
11. Ojuelaite (1979-035) 08.DC.15
12. Okanoganite-(Y) (1979-048) 09.AJ.35
13. Okayamalite (1997-002) 09.BB.10 [no]
14. Okenite (Y: 1828) 09.EA.40
15. Okhotskite (1985-010a) 09.BG.20
16. Okruschite (2013-097) 08.?? [no] [no]
    (IUPAC: Dicalcium pentamanganese(II) tetraberyllium hexaarsenate tetrahydroxyl hexahydrate)
17. Oldhamite (Y: 1863) 02.CD.10
    (IUPAC: Calcium sulfide)
18. Olekminskite (1989-047) 05.AB.40
19. Olenite (1985-006) 09.CK.05
20. Olgite (1979-027) 08.AC.40
21. Olivenite (Y: 1820), mineral and group 08.BB.30
22. Olkhonskite (1993-035) 04.CB.35
23. Olmiite (2006-026) 09.AF.90 [no]
24. Olmsteadite (1974-034) 08.DJ.05
25. Olsacherite (1969-009) 07.AD.35
26. Olshanskyite (1968-025) 06.CA.55
27. Olympite (1979-065) 08.AA.30
28. Omeiite (Y: 1978, 1985-xxx) 02.EB.15a
    (IUPAC: Osmium diarsenide)
29. Ominelite (1999-025) 09.AJ.05 [no]
30. Omongwaite (2003-054b) 07.CD.65 [no]
31. Omphacite (1988 s.p.) 09.DA.20
32. Omsite (2012-025) 04.FB.?? [no] [no]
33. Ondrušite (2008-010) 08.CE.30 [no] [no]
34. Oneillite (1998-064) 09.CO.10 [no]
35. Onoratoite (1967-032) 03.DC.80
36. Oosterboschite (1970-016) 02.BC.10
37. Opal (Y: old) 04.DA.10 [no]
38. Ophirite (2013-017) heteropolytungstate [no] [no]
39. Orcelite (Y: 1959, 1962 s.p.) 02.AB.10
40. Ordoñezite (Y: 1955) 04.DB.10
    (IUPAC: Zinc diantimony(V) hexaoxide)
41. Örebroite (1985-039) 09.AF.75
42. Oregonite (Y: 1959, 1962 s.p.) 02.BB.05
    (IUPAC: Ison dinickel diarsenide)
43. Organovaite 09.CE.30g
    1. Organovaite-Mn (2000-031) 09.CE.30g [no]
    2. Organovaite-Zn (2001-006) 09.CE.30g [no]
44. Orickite (1978-059) 02.FB.15
45. Orientite (Y: 1921) 09.BJ.05
46. Orlandiite (1998-038, 1998-035) 04.JH.20
47. Orlovite (2009-006) 09.EC.20 [no] [no]
48. Orlymanite (1988-029) 09.EE.30
49. Orpiment (Y: 1944) 02.FA.30
    (IUPAC: Diarsenic trisulfide)
50. Orschallite (1990-041) 04.JE.15
51. Orthobrannerite (Y: 1978, 1982 s.p.) 04.DH.05
52. Orthoclase (Y: 1823, 1962 s.p.) 09.FA.30
53. Orthojoaquinite 09.CE.25
    1. Orthojoaquinite-(Ce) (1979-081b) 09.CE.25
    2. Orthojoaquinite-(La) (IMA 2000-D Rd) 09.CE.25 [no]
54. Orthominasragrite (2000-018) 07.DB.20
55. Orthopinakiolite (Y: 1960, 1962 s.p.) 06.AB.40
56. Orthoserpierite (1983-022a) 07.DD.30
57. Orthowalpurgite (1994-024) 08.EA.05
58. Osakaite (2006-049) 07.DE.40 [no]
59. Osarizawaite (Y: 1961, 1987 s.p. Rd) 07.BC.10
    (IUPAC: Copper lead dialuminium disulfate hexahydroxyl)
60. Osarsite (1971-025) 02.EB.20
61. Osbornite (Y: 1870) 01.BC.15
    (IUPAC: Titanium nitride)
62. Oscarkempffite (2011-029) 02.?? [no] [no]
63. Oskarssonite (2012-088) 03.?? [no] [no] [no]
    (IUPAC: Aluminium trifluoride)
64. Osmium (Y: 1804, 1991 s.p. Rd) 01.AF.05
65. Osumilite 09.CM.05
    1. Osumilite (Y: 1953) 09.CM.05
    2. Osumilite-(Mg) (2011-083) 09.CM.05
66. Oswaldpeetersite (2000-034) 05.EA.20
67. Otavite (Y: 1842) 05.AB.05
68. Otjisumeite (1978-080) 09.JA.15
69. Ottemannite (Y: 1966, 1968 s.p.) 02.DB.10
70. Ottensite (2006-014) 02.MA.05 [no]
71. Ottoite (2009-063) 07.?? [no] [no]
72. Ottrélite (Y: 1842) 09.AF.85
73. Otwayite (1976-028) 05.DA.15
74. Oulankaite (1990-055) 02.BC.40
75. Ourayite (1976-007) 02.JB.40c
76. Oursinite (1982-051) 09.AK.10
77. Ovamboite (1992-039) 02.CB.30 [no]
78. Overite (Y: 1940) 08.DH.20
    (IUPAC: Calcium magnesium aluminium diphosphate hydroxyl tetrahydrate)
79. Owensite (1993-061) 02.FC.05
80. Owyheeite (Y: 1920) 02.HC.35
81. Oxammite (Y: 1870) 10.AB.55
82. Oxo-magnesio-hastingsite (2012 s.p. Rd) 09.D?. [no] [no] [no]
83. Oxycalciopyrochlore (1978-052, 2010 s.p. Rd) 04.?? (red. )
84. Oxycalcioroméite (2012-022) 04.?? [no] [no]
85. Oxy-chromium-dravite (2011-097) 09.CK.?? [no] [no]
86. Oxy-dravite (2012-004a) 09.CK.05 [no] [no]
87. Oxykinoshitalite (2004-013) 09.EC.35 [no]
88. Oxynatromicrolite (2013-063) 04.?? [no] [no]
89. Oxyphlogopite (2009-069) 09.EC.20 [no] [no]
90. Oxyplumboroméite (2013-042) 04.DH.?? [no] [no]
    (IUPAC: Dilead diantimony heptaoxide)
91. Oxy-schorl (2011-011) 09.CK.?? [no] [no]
92. Oxystannomicrolite (Y: 1968, 2010 s.p. Rd) 04.?? (red. )
93. Oxystibiomicrolite (Y: 1938, 2010 s.p. Rd) 04.?? (red. )
94. Oxy-vanadium-dravite (1999-050, IMA 2011-E Rd) 09.CK.05 [no]
95. Oxyvanite (2008-044) 04.CB.30 [no]
96. Oyelite (1980-103) 09.HA.80

External links

• IMA Database of Mineral Properties/ RRUFF Project
• Mindat.org - The Mineral Database
• Webmineral.com
• Mineralatlas.eu minerals O