-
2
-
-
84861695632
-
Opal: South Australia's gemstone
-
Barnes, L.C, Townsend, I.J, Robertson, R.S, and Scott, D.C, Eds, Department of Mines and Energy, Geological Survey of South Australia
-
Barnes, L.C., Townsend, I.J., Robertson, R.S., and Scott, D.C., Eds. (1992) Opal: South Australia's gemstone. Handbook No. 5, Department of Mines and Energy, Geological Survey of South Australia.
-
(1992)
Handbook
, Issue.5
-
-
-
3
-
-
0242708243
-
The mineralogical similarity of precious and common opal from Australia
-
Bayliss, P. and Males, P.A. (1965) The mineralogical similarity of precious and common opal from Australia. Mineralogical Magazine, 35, 429-431.
-
(1965)
Mineralogical Magazine
, vol.35
, pp. 429-431
-
-
Bayliss, P.1
Males, P.A.2
-
4
-
-
0026295880
-
Low-temperature opal-CT precipitation in Antartic deep-sea sediments: Evidence from oxygen isotopes
-
Botz, R. and Bohrmann, G. (1991) Low-temperature opal-CT precipitation in Antartic deep-sea sediments: Evidence from oxygen isotopes. Earth and Planetary Science Letters, 107, 612-617.
-
(1991)
Earth and Planetary Science Letters
, vol.107
, pp. 612-617
-
-
Botz, R.1
Bohrmann, G.2
-
5
-
-
0037310569
-
The occurrence and significance of biogenic opal in the regolith
-
Clarke, J. (2003) The occurrence and significance of biogenic opal in the regolith. Earth-Science Reviews, 60, 175-194.
-
(2003)
Earth-Science Reviews
, vol.60
, pp. 175-194
-
-
Clarke, J.1
-
6
-
-
0344290811
-
Electron microscope studies of the structure of opal
-
Cole, S.H. and Monroe, E.A. (1967) Electron microscope studies of the structure of opal. Journal of Applied Physics, 38, 1872-1873.
-
(1967)
Journal of Applied Physics
, vol.38
, pp. 1872-1873
-
-
Cole, S.H.1
Monroe, E.A.2
-
8
-
-
33645611876
-
Origin of precious opal
-
Darragh, P.J., Gaskin, A.J., Terrell, B.C., and Sanders, J.V. (1966) Origin of precious opal. Nature, 209, 13-16.
-
(1966)
Nature
, vol.209
, pp. 13-16
-
-
Darragh, P.J.1
Gaskin, A.J.2
Terrell, B.C.3
Sanders, J.V.4
-
9
-
-
7744230293
-
Structure of precious opal from Cervenica
-
Dódony, I. and Takacs, J. (1980) Structure of precious opal from Cervenica. Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös nominanate, Sectio Geologica, 22, 37-50.
-
(1980)
Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös nominanate, Sectio Geologica
, vol.22
, pp. 37-50
-
-
Dódony, I.1
Takacs, J.2
-
10
-
-
0033784818
-
Diagenesis of silica minerals from clay minerals in volcanic soils of Mexico
-
Elsass, F., Dubroeucq, D., and Thiry, M. (2000) Diagenesis of silica minerals from clay minerals in volcanic soils of Mexico. Clays and Clay Minerals, 35, 477-489.
-
(2000)
Clays and Clay Minerals
, vol.35
, pp. 477-489
-
-
Elsass, F.1
Dubroeucq, D.2
Thiry, M.3
-
11
-
-
0030485123
-
TEM and X-ray diffraction evidence for cristobalite and tridymite stacking sequences in opal
-
Elzea, J.M. and Rice, S.B. (1996) TEM and X-ray diffraction evidence for cristobalite and tridymite stacking sequences in opal. Clays and Clay Minerals, 44, 492-500.
-
(1996)
Clays and Clay Minerals
, vol.44
, pp. 492-500
-
-
Elzea, J.M.1
Rice, S.B.2
-
12
-
-
33646634017
-
Some aspects of precious opal research
-
Filin, S.V., Puzynin, A.I., and Samoilov, V.N. (2003) Some aspects of precious opal research. The Australian Gemmologist, 21, 278-282.
-
(2003)
The Australian Gemmologist
, vol.21
, pp. 278-282
-
-
Filin, S.V.1
Puzynin, A.I.2
Samoilov, V.N.3
-
13
-
-
0000648590
-
Opal-CT crystals
-
Flörke, O.W., Jones, J.B., and Segnit, E.R. (1975) Opal-CT crystals. Neues Jahrbuch für Mineralogie Monatshefte, 8, 369-377.
-
(1975)
Neues Jahrbuch für Mineralogie Monatshefte
, vol.8
, pp. 369-377
-
-
Flörke, O.W.1
Jones, J.B.2
Segnit, E.R.3
-
14
-
-
0008770070
-
Intergrowth and twinning in opal-CT lepispheres
-
Flörke, O.W., Hollman, R., Von Rad, U., and Roesch, H. (1976) Intergrowth and twinning in opal-CT lepispheres. Contributions to Mineralogy and Petrology, 58, 235-242.
-
(1976)
Contributions to Mineralogy and Petrology
, vol.58
, pp. 235-242
-
-
Flörke, O.W.1
Hollman, R.2
Von Rad, U.3
Roesch, H.4
-
15
-
-
0002486629
-
Nomenclature of micro- and non-crystalline silica minerals, based on structure and microstructure
-
Flörke, O.W., Graetsch, H., Martin, B., Röller, K., and Wirth, R. (1991) Nomenclature of micro- and non-crystalline silica minerals, based on structure and microstructure. Neues Jahrbuch für Mineralogie Monatshefte, 163, 19-42.
-
(1991)
Neues Jahrbuch für Mineralogie Monatshefte
, vol.163
, pp. 19-42
-
-
Flörke, O.W.1
Graetsch, H.2
Martin, B.3
Röller, K.4
Wirth, R.5
-
16
-
-
0141866685
-
Découvertes récentes sur l'opale
-
139
-
Fritsch, E., Rondeau, B., Ostrooumov, M., Lasnier, B., Marie, A.M., Barrault, A., Wery, J., Connoué, J., and Lefrant, S. (1999) Découvertes récentes sur l'opale, Revue de gemmologie a.f.g., 138/139, 34-40.
-
(1999)
Revue de gemmologie a.f.g
, vol.138
, pp. 34-40
-
-
Fritsch, E.1
Rondeau, B.2
Ostrooumov, M.3
Lasnier, B.4
Marie, A.M.5
Barrault, A.6
Wery, J.7
Connoué, J.8
Lefrant, S.9
-
17
-
-
58049124518
-
-
Fritsch, E., Ostrooumov, M., Rondeau, B., Barreau, A., Albertini, D., Marie A.M., Lasnier, B., and Wery, J. (2002) Mexican gem opal: nano- and micro-structure, origin of color and comparison with other common opals of gemological significance. The Australian Gerontologist, 21, 230-233.
-
Fritsch, E., Ostrooumov, M., Rondeau, B., Barreau, A., Albertini, D., Marie A.M., Lasnier, B., and Wery, J. (2002) Mexican gem opal: nano- and micro-structure, origin of color and comparison with other common opals of gemological significance. The Australian Gerontologist, 21, 230-233.
-
-
-
-
18
-
-
7744224700
-
Relationship between nanostructure and optical absorption in fibrous pink opals from Mexico and Peru
-
Fritsch, E., Gaillou, E., Ostroumov, M., Rondeau, B., Devouard, B., and Barreau, A. (2004) Relationship between nanostructure and optical absorption in fibrous pink opals from Mexico and Peru. European Journal of Mineralogy, 16, 743-752.
-
(2004)
European Journal of Mineralogy
, vol.16
, pp. 743-752
-
-
Fritsch, E.1
Gaillou, E.2
Ostroumov, M.3
Rondeau, B.4
Devouard, B.5
Barreau, A.6
-
19
-
-
33749174311
-
The nanostructure of fire opal
-
Fritsch, E., Gaillou, E., Rondeau, B., Barreau, A., Albertini, D., and Ostroumov, M. (2006) The nanostructure of fire opal. Journal of Non-Crystalline Solids, 352, 3957-3960.
-
(2006)
Journal of Non-Crystalline Solids
, vol.352
, pp. 3957-3960
-
-
Fritsch, E.1
Gaillou, E.2
Rondeau, B.3
Barreau, A.4
Albertini, D.5
Ostroumov, M.6
-
20
-
-
58049117915
-
The geochemistry of gem opals as evidence of their origin
-
Gaillou, E., Delaunay, A., Rondeau, B., Bouhnik-Le-Coz, M., Fritsch, E., Cornen, G., and Monnier, C. (2008) The geochemistry of gem opals as evidence of their origin. Ore and Geology Reviews, 34, 113-126.
-
(2008)
Ore and Geology Reviews
, vol.34
, pp. 113-126
-
-
Gaillou, E.1
Delaunay, A.2
Rondeau, B.3
Bouhnik-Le-Coz, M.4
Fritsch, E.5
Cornen, G.6
Monnier, C.7
-
21
-
-
58049088839
-
L'opale noble au microscope électronique
-
Gauthier, J.-P. (1986) L'opale noble au microscope électronique. Revue de gemmologie a.f.g., 86, 21-26.
-
(1986)
Revue de gemmologie a.f.g
, vol.86
, pp. 21-26
-
-
Gauthier, J.-P.1
-
22
-
-
85061125966
-
Structural characteristics of opaline and microcrystalline silica minerals
-
P.J. Heaney, C.T. Prewitt, and G.V. Gibbs, Eds, Silica Physical Behavior, Geochemistry, and Materials Applications, Mineralogical Society of America, Chantilly, Virginia
-
Graetsch, H. (1994) Structural characteristics of opaline and microcrystalline silica minerals. In P.J. Heaney, C.T. Prewitt, and G.V. Gibbs, Eds., Silica Physical Behavior, Geochemistry, and Materials Applications, 29, p. 209-232. Reviews in Mineralogy, Mineralogical Society of America, Chantilly, Virginia.
-
(1994)
Reviews in Mineralogy
, vol.29
, pp. 209-232
-
-
Graetsch, H.1
-
24
-
-
0000471323
-
Silica: Physical Behavior, Geochemistry, and Materials Applications
-
606 p, Mineralogical Society of America, Chantilly, Virginia
-
Heaney, P.J., Prewitt, C.T., and Gibbs, G.V. (1994) Silica: Physical Behavior, Geochemistry, and Materials Applications, 29, 606 p. Reviews in Mineralogy, Mineralogical Society of America, Chantilly, Virginia.
-
(1994)
Reviews in Mineralogy
, vol.29
-
-
Heaney, P.J.1
Prewitt, C.T.2
Gibbs, G.V.3
-
25
-
-
0024233305
-
Accumulation and dissolution of opal in quaternary sediments of the Zaire deep-sea fan (northeastern Angola Basin)
-
Jansen, J.H.F. and Van der Gaast, S.J. (1988) Accumulation and dissolution of opal in quaternary sediments of the Zaire deep-sea fan (northeastern Angola Basin). Marine Geology, 83, 1-7.
-
(1988)
Marine Geology
, vol.83
, pp. 1-7
-
-
Jansen, J.H.F.1
Van der Gaast, S.J.2
-
27
-
-
0000864764
-
Structure of opal
-
Jones, J.B., Sanders, J.V., and Segnit, E.R. (1964) Structure of opal. Nature, 204, 990-991.
-
(1964)
Nature
, vol.204
, pp. 990-991
-
-
Jones, J.B.1
Sanders, J.V.2
Segnit, E.R.3
-
28
-
-
0000659958
-
Diagenesis of siliceous oozes-I. Chemical controls of the rate of opal-A to opal-CT transformation. An experimental study
-
Kastner, M., Keene, J.B., and Gieskes, J.M. (1977) Diagenesis of siliceous oozes-I. Chemical controls of the rate of opal-A to opal-CT transformation. An experimental study. Geochimica and Cosmochimica Acta, 41, 1041-1059.
-
(1977)
Geochimica and Cosmochimica Acta
, vol.41
, pp. 1041-1059
-
-
Kastner, M.1
Keene, J.B.2
Gieskes, J.M.3
-
30
-
-
0022214583
-
Techniques for determining opal in deep-sea sediments: A comparison of radiolarian counts and X-ray diffraction data
-
Leinen, M. (1985) Techniques for determining opal in deep-sea sediments: a comparison of radiolarian counts and X-ray diffraction data. Marine Micropaleontology, 9, 375-383.
-
(1985)
Marine Micropaleontology
, vol.9
, pp. 375-383
-
-
Leinen, M.1
-
31
-
-
58049094302
-
-
O'Neil, J.R. (1987) Preservation of H, C, and O isotopic ratios in the low temperature environment. In T.K. Kyser, Ed., Stable Isotope Geochemistry of Low Temperature Processes, 13, p. 85-128. Short course Mineralogical Association of Canada, Québec.
-
O'Neil, J.R. (1987) Preservation of H, C, and O isotopic ratios in the low temperature environment. In T.K. Kyser, Ed., Stable Isotope Geochemistry of Low Temperature Processes, 13, p. 85-128. Short course volume, Mineralogical Association of Canada, Québec.
-
-
-
-
32
-
-
0033380503
-
Spectres Raman des opales: Aspect diagnostique et aide à la classification.
-
Ostrooumov, M., Fritsch, E., Lasnier, B., and Lefrant, S. (1999) Spectres Raman des opales: Aspect diagnostique et aide à la classification. European Journal of Mineralogy, 11, 899-908.
-
(1999)
European Journal of Mineralogy
, vol.11
, pp. 899-908
-
-
Ostrooumov, M.1
Fritsch, E.2
Lasnier, B.3
Lefrant, S.4
-
33
-
-
7744234150
-
A propos de l'opale australienne
-
Payette, F. (1999) A propos de l'opale australienne. Revue de gemmologie a.f.g., 138-139, 67-71.
-
(1999)
Revue de gemmologie a.f.g
, vol.138-139
, pp. 67-71
-
-
Payette, F.1
-
35
-
-
0014616701
-
Electron microscopy of precious opal
-
Rau, R.C. and Amaral, E.J. (1969) Electron microscopy of precious opal. Metallography, 2, 323-28.
-
(1969)
Metallography
, vol.2
, pp. 323-328
-
-
Rau, R.C.1
Amaral, E.J.2
-
36
-
-
7744244801
-
Opals from Slovakia ("Hungarian" opals): A re-assessment of the conditions of formation
-
Rondeau, B., Fritsch, E., Guiraud, M., and Renac, C. (2004) Opals from Slovakia ("Hungarian" opals): A re-assessment of the conditions of formation. European Journal of Mineralogy, 16, 789-799.
-
(2004)
European Journal of Mineralogy
, vol.16
, pp. 789-799
-
-
Rondeau, B.1
Fritsch, E.2
Guiraud, M.3
Renac, C.4
-
37
-
-
0042673652
-
Color of precious opal
-
Sanders, J.V. (1964) Color of precious opal. Nature, 204, 1151-1153.
-
(1964)
Nature
, vol.204
, pp. 1151-1153
-
-
Sanders, J.V.1
-
38
-
-
7744224791
-
The structure of star opals
-
Sanders, J.V. (1976) The structure of star opals. Acta Crystallographica A, 32, 334-338.
-
(1976)
Acta Crystallographica A
, vol.32
, pp. 334-338
-
-
Sanders, J.V.1
-
41
-
-
0038911581
-
Characterization of sedimentary opals by Fourier Transform Raman spectroscopy
-
Smallwood, A.G., Thomas, P.S., and Ray, A.S. (1997) Characterization of sedimentary opals by Fourier Transform Raman spectroscopy. Spectrochimica Acta, Part A, 53, 2341-2345.
-
(1997)
Spectrochimica Acta, Part A
, vol.53
, pp. 2341-2345
-
-
Smallwood, A.G.1
Thomas, P.S.2
Ray, A.S.3
-
42
-
-
0342525460
-
Opal from Queretaro, Mexico: Fluid inclusion study
-
Spencer, R.J., Levinson, A.A., and Koivula, J.I. (1992) Opal from Queretaro, Mexico: Fluid inclusion study. Gems and Gemology, 28, 28-33.
-
(1992)
Gems and Gemology
, vol.28
, pp. 28-33
-
-
Spencer, R.J.1
Levinson, A.A.2
Koivula, J.I.3
-
43
-
-
20444406055
-
Controlled growth of monodisperse silica sphere in the micron size range
-
Stöber, W., Fink, A., and Bohn, E. (1968) Controlled growth of monodisperse silica sphere in the micron size range. Journal of Colloidal and Interface Science, 26, 62-69.
-
(1968)
Journal of Colloidal and Interface Science
, vol.26
, pp. 62-69
-
-
Stöber, W.1
Fink, A.2
Bohn, E.3
|