Mindat Logo

Omphacite

Formula:
(Ca,Na)(Mg,Al)[Si
 
2
O
 
6
]
System:MonoclinicColour:dark green
Hardness:5 - 6


Pyroxene Group.

A primary constituent of the rock eclogite.

Classification of Omphacite

IMA status:Approved
Strunz 8th edition ID:8/F.01-100
Nickel-Strunz 10th (pending) edition ID:9.DA.20

9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
Dana 8th edition ID:65.1.3b.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
Hey's CIM Ref.:16.24.2

16 : Silicates Containing Aluminum and other Metals
24 : Aluminosilicates of Fe, Mg, Ca and alkalis
mindat.org URL:http://www.mindat.org/min-2991.html
Please feel free to link to this page.

Type Occurrence of Omphacite

Type Locality:Eclogite outcrops, Weißenstein Mt., Stammbach, Münchberg Metamorphic complex, Franconia, Bavaria, Germany
Year of Discovery:1815

Physical Properties of Omphacite

Colour:dark green
Streak:greenish white
Hardness (Mohs):5 - 6
Cleavage:Distinct/Good

Crystallography of Omphacite

Crystal System:Monoclinic
Cell Parameters:a = 9.66Å, b = 8.81Å, c = 5.22Å
β = 106.56°
Ratio:a:b:c = 1.096 : 1 : 0.593
Unit Cell Volume:V 425.82 ų (Calculated from Unit Cell)

Optical Data of Omphacite

Type:Biaxial (+)
RI values: nα = 1.662 - 1.701 nβ = 1.670 - 1.712 nγ = 1.685 - 1.723
2V:Measured: 58° to 83°, Calculated: 74° to 88°
Maximum Birefringence:δ = 0.023

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v moderate

Chemical Properties of Omphacite

Formula:
(Ca,Na)(Mg,Al)[Si
 
2
O
 
6
]
Essential elements:Ca, Mg, O, Si
All elements listed in formula:Al, Ca, Mg, Na, O, Si
Common Impurities:Ti,Cr,Mn,K,H2O

Relationship of Omphacite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DA.05Donpeacorite
(Mn
2+
 
,Mg)Mg[SiO
 
3
]
 
2
9.DA.05Enstatite
Mg
 
2
[SiO
 
3
]
 
2
9.DA.05Ferrosilite
Fe
 
2
[SiO
 
3
]
 
2
9.DA.10Clinoenstatite
Mg
 
2
[Si
 
2
O
 
6
]
9.DA.10Clinoferrosilite
Fe
2+
 
(Fe
2+
 
,Mg)[Si
 
2
O
 
6
]
9.DA.10Kanoite
Mn
2+
 
(Mg,Mn
2+
 
)[Si
 
2
O
 
6
]
9.DA.10Pigeonite
(Mg,Fe
2+
 
,Ca)(Mg,Fe
2+
 
)[Si
 
2
O
 
6
]
9.DA.15Augite
(Ca,Na)(Mg,Fe
2+
 
,Al,Fe
3+
 
,Ti)[(Si,Al)
 
2
O
 
6
]
9.DA.15Diopside
CaMg[Si
 
2
O
 
6
]
9.DA.15Esseneite
CaFe
3+
 
[AlSiO
 
6
]
9.DA.15Hedenbergite
CaFe
2+
 
[Si
 
2
O
 
6
]
9.DA.15Johannsenite
CaMn
2+
 
[Si
 
2
O
 
6
]
9.DA.15Petedunnite
Ca(Zn,Mn
2+
 
,Mg,Fe
2+
 
)[Si
 
2
O
 
6
]
9.DA.15Davisite
CaScAlSiO
 
6
9.DA.15Kushiroite
CaAl[AlSiO
 
6
]
9.DA.15Grossmanite
CaTi
3+
 
AlSiO
 
6
9.DA.20Aegirine-augite
(Na,Ca)(Fe
3+
 
,Fe
2+
 
,Mg,Al)Si
 
2
O
 
6
9.DA.25Aegirine
NaFe
3+
 
[Si
 
2
O
 
6
]
9.DA.25Jadeite
Na(Al,Fe
3+
 
)[Si
 
2
O
 
6
]
9.DA.25Jervisite
(Na,Ca,Fe
2+
 
)(Sc,Mg,Fe
2+
 
)[Si
 
2
O
 
6
]
9.DA.25Kosmochlor
NaCr[Si
 
2
O
 
6
]
9.DA.25Namansilite
NaMn
3+
 
[Si
 
2
O
 
6
]
9.DA.25Natalyite
Na(V
3+
 
,Cr)[Si
 
2
O
 
6
]
9.DA.30Spodumene
LiAl[Si
 
2
O
 
6
]
Related Minerals - Hey's Index Grouping:

- +
16.24.1Aegirine-augite
(Na,Ca)(Fe
3+
 
,Fe
2+
 
,Mg,Al)Si
 
2
O
 
6
16.24.4Magnesioferrikatophorite
[Na][CaNa][Mg
 
4
(Fe
3+
 
,Al)][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.5Ferrikatophorite
Na[CaNa][Fe
2+
4
(Fe
3+
 
,Al)][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.6Barroisite
☐[CaNa][Mg
 
3
AlFe
3+
 
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.7Ferribarroisite
☐[CaNa][Mg
 
3
Fe
3+
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.8Alumino-ferrobarroisite
☐[CaNa][Fe
2+
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.9Ferrobarroisite
☐[CaNa][Fe
2+
3
AlFe
3+
 
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.10Ferri-ferrobarroisite
☐[CaNa][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.24.11Hastingsite
[Na][Ca
 
2
][Fe
2+
4
Fe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.24.12Magnesiohastingsite
Na[Ca
 
2
][Mg
 
4
Fe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.24.13Taramite
Na[CaNa][Fe
2+
3
AlFe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.24.14Ferri-magnesiotaramite
Na[CaNa][Mg
 
3
Fe
3+
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.24.15Magnesiotaramite
Na[CaNa][Mg
 
3
AlFe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.24.16Osumilite-(Mg)
(K,Na)(Mg,Fe)
 
2
(Al,Fe)
 
3
(Si,Al)
 
12
O
 
30
·H
 
2
O
16.24.16Osumilite
(K,Na)(Fe
2+
 
,Mg)
 
2
(Al,Fe
3+
 
)
 
3
(Si,Al)
 
12
O
 
30

Other Names for Omphacite

Synonyms:
DiopsidjadeiteJadeite-DiopsideMayaiteTuxtlite
Other Languages:
Dutch:Omfaciet
French:Omphacite
German:Diopsidjadeit
Mayait
Mexikanischer Jadeit
Omphacit
Omphazit
Tuxtlit
Japanese:オンファス輝石
Polish:Omfacyt
Portuguese:Onfacite
Russian:Омфацит
Spanish:Diopsidjadeita
Mayaita
Omphacita
Tuxtlita
Varieties:
Chrome-OmphaciteTitanian Omphacite

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Omphacite

Reference List:Clark, Joan R. & J.J. Papike (1968), Crystal chemistry characterization of omphacites: American Mineralogist: 53: 840-868.

Clark, Joan R. & J.J. Papike (1969), Cation distribution in the crystal structure of omphacite, the eclogitic pyroxene: Geological Society of America Abstract for 1968.

Edgar, A.D., A. Mottana & N.D. MacRae (1969), The chemistry and cell parameters of omphacite and related pyroxenes: Mineralogical Magazine: 37: 61-74.

Champness, P.E. (1973), Speculation on an order-disorder transformation in omphacite: American Mineralogist: 58: 540-542.

Aldridge, L.P., Bancroft, G.M., Fleet, M.E., and Herzberg, C.T. (1978): Omphacite studies. II. Mössbauer spectra of C2/c and P2/n omphacites. American Mineralogist: 63: 1107-1115.

European Journal of Mineralogy (1998): 10: 889.

Internet Links for Omphacite

Search Engines:
  • Look for Omphacite on Google
  • Look for Omphacite images on Google
  • External Links:
  • Look for Omphacite on Webmineral
  • Look for Omphacite on Athena Mineralogy
  • Look for Omphacite on Wikipedia
  • Look for Omphacite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Omphacite in the Natural History Museum (London) online catalogue
  • Omphacite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Fine Minerals from Dan Weinrich Minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Fabre Minerals - search for Omphacite specimens
  • High-end worldwide specimens & outstanding customer service
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Lapis Mineral Magazin
  • Buy RARE Minerals from Rocks of Africa
  • Buy minerals from Mineralium.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Search for - Omphacite - on e-Rocks Mineral Sales & Auctions
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wendel Minerals - Auktion & Shop
  • Jobs:
  • Mining & Geology Jobs
  • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Omphacite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Afghanistan
     
    • Badakhshan (Badakshan; Badahsan) Province
      • Koksha Valley (Kokscha; Kokcha)
    Journal of Petrology 43(4):725-747 (2002)
    Australia
     
    • New South Wales
      • Yungnulgra Co.
        • White Cliffs
    Eur. J. Mineral. , 1991, 3, pp. 293-322.
    • Tasmania
      • Collingwood River
    Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    • Victoria
    Eur. J. Mineral. , 1989, 1, pp. 105-121.
    Eur. J. Mineral. , 1989, 1, pp. 105-121.
    Austria
     
    • Carinthia
      • Friesach - Hüttenberg area
        • Hüttenberg
          • Hüttenberger Erzberg
      • Koralpe Mts
        • Maria Rojach
    H. Meixner: Carinthia II, special ed. no. 21 (1957)
        • St Vinzenz
    G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
      • Lavant valley
        • St Paul
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Saualpe Mts
        • Ladinger Spitze Mt. - Speikkogel Mt. area
    G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995; Mottana, A., Church, W.R., and Edgar, A.D. (1968): Contributions to Mineralogy and Petrology 18, 338-346.
    • Lower Austria
      • Dunkelsteinerwald
        • Aggsbach Dorf
    D.A. Carswell et al., Eur.J. Mineral., 1989, 1, pp. 455-466.
      • Waldviertel
        • Horn
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Styria
      • Koralpe Mts
        • Wies
          • Wernersdorf
    Aufschluss 1972(SB), 44
    • Tyrol
      • North Tyrol
        • Ötz valley
          • Sulz valley
    Miller, C. (1970): Contributions to Mineralogy and Petrology 28, 42-56.
    Brazil
     
    • Southeast Region
      • Minas Gerais
    Chris D. Parkinson et al. , " Ultrahigh-pressure pyrope-kyanite granulites and associated eclogites in Neoproterozoic nappes of southeast Brazil", 2001, Universidade do Estado do Rio de Janeiro, http://akmotoki.tripod.com/2001/Waseda/Cdp.html
    Canada
     
    • Newfoundland and Labrador
      • Labrador
    • Northwest Territories
      • Contwoyto Lake
    www.venuewest.com/8IKC/s2post.htm.
    China
     
    • Anhui Province
      • Anqing Prefecture
        • Qianshan Co.
    Luo Yan, Gao Shan, Yuan Honglin, Liu Xiaomin, Günther, D., Jin Zhenmin, and Sun Min (2004): Science in China, Series D (Earth Sciences), 47(10), 920-930.
    Eur. J. Mineral. , 1995, 7, pp. 119-138.
        • Taihu Co.
          • Lake Hualiangting
    Franz, L., Romer, R.L., Klemd, R., Schmid, R., Oberhänsli, R., Wagner, T., and Dong Shuwen (2001): Contributions to Mineralogy and Petrology 141, 322-346.
    Wu, Xiuling, Dawei Meng, and Yujing Han (2005), α-PbO2-type nanophase of TiO2 from coesite-bearing eclogite in the Dabie Mountains, China: American Mineralogist: 90: 1458-1461
        • Tongcheng Co.
    Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
    Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
        • Yuexi Co.
    Yilin Xiao, Hoefs, J., van den Kerkhof, A.M., Fiebig, J., and Yongfei Zheng (2000): Contributions to Mineralogy and Petrology 139, 1-16.
          • Wumiao
    A.I. Okay et al. , Eur. J. Mineral. , 1989, 1, pp. 595-598.
            • Marble quarry
      • Lu'an Prefecture
        • Huoshan Co.
          • Zhujiachong
    Castelli, D., Rolfo, F., Compagnoni, R., and Shutong Xu (1998): Island Arc 7 (1-2), 159–173.
        • Shucheng Co.
    Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
    Yican Liu, Shutong Xu, Shuguang Li, Laili Jiang, Weiping Wu, Guanbao Chen, and Wen Su (2000): Science in China, Series D (Earth Sciences), 43(suppl.), 178-188.
    • Henan Province
      • Nanyang Prefecture
        • Tongbai Co.
          • Tongbai
    Chinho Tsai, Hanwen Zhou, and Yoshiyuki Iizuka (2007): Goldschmidt Conference Abstracts 2007, A 1039.
      • Xinyang Prefecture
        • Luoshan Co.
    - Weidong Sun, Williams, I.S., and Shuguang Li (2002): Journal of Metamorphic Geology 20(9), 873-886.
    Ratschbacher, L., Franz, L., Enkelmann, E., Jonckheere, R., Pörschke, A., Hacker, B.R., Dong, S., and Zhang, Y. (2006), In: Hacker, B.R., McClelland, W.C., and Liou, J.G. (eds.): Ultrahigh-pressure metamorphism: Deep continental subduction. Geological Society of America Special Paper 403, 45–75.
    Ratschbacher, L., Franz, L., Enkelmann, E., Jonckheere, R., Pörschke, A., Hacker, B.R., Dong, S., and Zhang, Y. (2006), In: Hacker, B.R., McClelland, W.C., and Liou, J.G. (eds.): Ultrahigh-pressure metamorphism: Deep continental subduction. Geological Society of America Special Paper 403, 45–75.
        • Xin Co.
    Ruyuan Zhang and Liou, J.G. (1994): European Journal of Mineralogy 6(2), 217-233.
    • Hubei Province
      • Huanggang Prefecture
        • Hong'an Co.
    Yuanbao Wu, Shan Gao, Hongfei Zhang, Saihong Yang, Wenfang Jiao, Yongsheng Liu, and Honglin Yuan (2008): Contributions to Mineralogy and Petrology 155, 123-133.
        • Macheng Co.
    Zhong Zengqiu, Zhang Hongfei, Suo Shutian, and You Zhendong (1999): Journal of China University of Geosciences 10(3).
        • Yingshan Co.
    Zhong Zengqiu, Zhang Hongfei, Suo Shutian, and You Zhendong (1999): Journal of China University of Geosciences 10(3).
    Guxian Lü, Jing Chen, Tiping Ding, Xiaobo Li, Fangzheng Wang, and Ruixun Li (2001): Journal of Geosciences of China 3(1), 1-12.
    • Jiangsu Province
      • Lianyungang Prefecture
        • Donghai Co.
    Yilin Xiao, Zheming Zhang, Hoefs, J., and van den Kerkhof, A. (2006): Contributions to Mineralogy and Petrology 152, 443-458.
    Zhang, R.Y., Liou, J.G., and Shu, J.F. (2002): American Mineralogist 87, 445-453.
      • Xuzhou Prefecture
        • Xinyi Co.
    Jian Ping-Huang, Dong-Sheng Ma, Cong Liu, and Huo-Gen Chen (2006): Chinese Journal of Geochemistry 25(1), 33-42.
    • Qinghai (Chinghai) Province
      • Haibei Autonomous Prefecture
        • Qilian Co.
          • North Qilian Metamorphic Belt
    Song Shuguang, Zhang Lifei, Niu Yaoling, Song Biao, Zhang Guibing, and Wang Qianjie (2004): Chinese Science Bulletin 49(8), 848-852.
    Song Shuguang, Zhang Lifei, Niu Yaoling, Song Biao, Zhang Guibing, and Wang Qianjie (2004): Chinese Science Bulletin 49(8), 848-852.
      • Haixi Autonomous Prefecture
        • North Qaidam UHP Terrane
    Jingsui Yang, Shuguang Song, Zhiqin Xu, Fulai Liu, Shigenori Maruyama, Liou, J.G., Jianxin Zhang, Cailai Wu, Haibing Li, and Rendeng Shi (2001): Presented at the 11th Annual V.M. Goldschmidt Conference, Abstract no. 3088.
    Mattinson, C.G., Wooden, J.L., Liou, J.G., Bird, D.K., and Wu, C.L. (2006): American Journal of Science 306, 683-711.; American Mineralogist, Volume 94, pages 222–228, 2009
    Zhang, G., Zhang, L., Song, S., Niu, Y., and Wang, Q. (2006): Eos Trans. AGU, 87(36), West. Pac. Geophys. Meet. Suppl., Abstract V32A-03.
    Yang Jingsui et al.(2001): UHPM workshop, Waseda University.
    Chen Danling, Sun Yong, Liu Liang, Zhang Anda, and Lin Ciluan (2007): Science in China, Series D (Earth Sciences), 50(suppl. 2), 322-330.
    • Shandong Province
      • Jiaodong Gold Province
        • Qingdao Prefecture
          • Laoshan District
    Luo Yan, Gao Shan, Yuan Honglin, Liu Xiaomin, Günther, D., Jin Zhenmin, and Sun Min (2004): Science in China, Series D (Earth Sciences), 47(10), 920-930.
      • Jinan Prefecture
        • Jinan City
          • Licheng District
            • Qinglong Mt.
    Am. Min. , V 89, pp. 1772-1783, 2004.
    Y.F. Zheng et al. , Eur. J. Mineral. , 1996, 8, pp. 317-323.
      • Rizhao Prefecture
        • Rizhao City
    American Mineralogist, Volume 87, pages 875-881, 2002, KAI YE et al. "Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China".
    • Tibet Autonomous Region
      • Nagchu (Naqu) Prefecture
        • Qiangtang metamorphic belt
    Kaijun Zhang, Jianxin Cai, Yuxiu Zhang, and Taiping Zhao (2006): Earth and Planetary Science Letters 245(3/4), 722-729.
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Bayin'gholin (Bayingolin; Bayinguoleng) Autonomous Prefecture
        • Qiemo (Qerqen; Cherchen) Co.
          • Jianggalesayi area
    Zhang, J.X. et al. (2001): Lithos 56, 187-206.
      • Yili Hasake (Ili Kazakh) Autonomous Prefecture
    Wei Lin and Masaki Enami (2006): Island Arc 15(4), 483-502.
        • Zhaosu Co.
    Lifei Zhang, Jun Gao, Ekebair, S., and Zongxiu Wang (2001): Science in China, Series D (Earth Sciences), 44(1), 85-96.
    Cuba
     
    • Guantánamo Province
    Garcia-Casco, A. et al (2009) A new jadeitite jade locality (Sierra del Convento, Cuba): first report and some petrological and archeological implications. Contributions to Mineralogy and Petrology, 158, #1, 1-16.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Kutná Hora (Kuttenberg)
      • Ústí Region
        • Třebenice (Trebnitz)
    Seifert, A.V., Vrana, S. (2005): Bohemian garnet, Bulletin of Geosciences, Vol. 80, 113-124
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Třebíč
          • Rouchovany
    Bernard J.H. and Hyrsl J. (2004) Minerals and their Localities.
    France
     
    • Brittany
      • Finistère
        • Lesneven
    Bull. Minéral. , 1987, 110, pp. 683-696.
      • Morbihan
        • Groix
          • Groix Island
    Inventaire Minéralogique de la France numero 9 Morbihan ( éditions BRGM )
    • Limousin
      • Haute-Vienne
    D. Coffrant, Bull. Soc. Fr. Minéral. Cristallogr. , 1974, 97, pp. 70-78.
    • Provence-Alpes-Côte d'Azur
      • Hautes-Alpes
        • Briançon
          • Abries
            • Monviso (Monte Viso)
    Messiga et al. : "Cr-rich Magnesiochloritoid Eclogites from the Monviso ophiolites (Western Alps Italy)", Journal of Metamorphic Geology, Vol 17, Issue 3, p. 287, May 1999.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    KAISER, H. (1984): Die Grube Clara zu Wolfach im Schwarzwald. Verlag Karl Schillinger, Freiburg im Breisgau, 102 pp. (in German)
    • Bavaria
      • Franconia
        • Münchberg Metamorphic complex
          • Bad Berneck
          • Konradsreuth
    [var: Chrome-Omphacite] F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
          • Marktschorgast
    F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
          • Oberkotzau
    F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
          • Schwarzenbach an der Saale
    F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
          • Stammbach
            • Weißenstein Mt.
    [Clark, 1993 - "Hey's Mineral Index"]
          • Wölbattendorf
    F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
    • Saxony
      • Erzgebirge
        • Clausnitz - Sayda District
          • Voigtsdorf
    Eur. J. Mineral. , 1991, 3, pp. 291-238.
        • Großhartmannsdorf
    Eur. J. Mineral. , 1991, 3, pp. 291-238.
    Eur. J. Mineral. , 1991, 3, pp. 291-238.
        • Olbernhau
          • Zöblitz
    Eur. J. Mineral. , 1991, 3, pp. 291-238.
        • Pockau
          • Forchheim
    Eur. J. Mineral. , 1991, 3, pp. 291-238.
    Greece
     
    • Aegean Islands (Aiyaíon) Department
      • Kykládes Prefecture
        • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
          • Andros Island
    Reinecke, T. (1982): Contributions to Mineralogy and Petrology 79, 333-336.
          • Sifnos Island
    Eur. J. Mineral. , 1992, 4, pp. 619-634.
    • Thraki (Thrace; Thracia) Department
      • Komotini (Rodopi; Rhodope) Prefecture
        • Thermes
    Eur. J. Mineral. , 1994, 6, pp. 733-738.
    Guatemala
     
    • Jalapa Department
    [var: Titanian Omphacite] http://gsa.confex.com/gsa/2003AM/finalprogram/abstract_65497.htm.
    • Motagua Valley
    Am. Miner., V. 90, pp. 836-842, 2005.
    India
     
    • Maharashtra
      • Mumbai District (Bombay District)
        • Murud-Janjira
    A.G. Dessai et al. , Eur. J. Mineral. , 1990, 2, pp. 667-685.
    Italy
     
    • Aosta Valley
      • Lys Valley
    Ch. Robert et al. , Bull. Minéral. , 1985, 108, pp. 699-711.
      • Pont-Saint-Martin
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Saint-Marcel
    Kienast, J.R. & Martin, S. (1983): I pirosseni egirin-giadeitici del livello basale di Praborna, Alpi occidentali. Ofioliti, 8(2), 245-260.
    • Liguria
      • Genova Province
        • Genova
          • Voltri
            • Vara Valley
      • Savona Province
        • Sassello
          • Piampaludo
    Antofilli, Borgo, Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia.
    • Piedmont
      • Biella Province
    Piccoli, G. C., Maletto, G., Bosio, P., & Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo F. Eusebio - Alba, 607 pag.
      • Cuneo Province
        • Dora Maira Massif
          • Varaita Valley
    T. Hirajima and R. Compagnoni : "Petrology of a jadeite-quartz-almandine-phengite fels with retrograde ferro-nyböite from the Dora-Maira Massif, Western Alps", Eur. Journ. Mineral., 1993, 5, pp 943-955.
        • Varaita Valley
          • Sampeyre
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Torino Province
        • Canavese District
          • Quincinetto
        • Orco Valley
          • Courgnè
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d\'Aosta. Associazione Amici del Museo \"F. Eusebio\" Alba, Ed., Alba (Cuneo) 607 pp.
    Ch. Robert et al. , Bull. Minéral. , 1985, 108, pp. 699-711.
        • Sesia-Lanzo zone
          • Lanzo Valley
            • Lanzo Massif
              • Balangero - Corio area
                • Malone Valley
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Eur. J. Mineral (1989): 1: 89-104.
                  • Rocca Canavese
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Eur. J. Mineral (1989): 1: 89-104.
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Eur. J. Mineral. , 1989, 1, pp. 89-104.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Niigata Prefecture
    [MinRec 33:168]
    Fossa Magna Museum specimens
            • Ohmi
    Alluvial cobbles in innumerable collections; common.
    Kazakhstan
     
    • Kökshetaü Oblysy (Kokshatau [Kokchetav] Oblast')
    Lesotho
     
    • Butha-Buthe District
    New Caledonia
    AmMin 55:512
    AmMin 55:512
    Nigeria
     
    • Katsina State
    Norway
     
    • More og Romsdal
      • Haram
    J. Metam. Geol. , 2003, 21, pp. 601-612.
      • Ulstein
        • Hareidland
    [Clark, 1993 - "Hey's Mineral Index"]
    J. Metam. Geol. , 2003, 21, pp. 601-612.
    • Nordland
      • Lofoten
        • Flakstad
          • Flakstadøy Island
    • Sogn og Fjordane
      • Nordfjord
    L. Ungaretti et al. , Bull. Minéral., 1981, 104, pp. 400-412, France.
    J. Metam. Geol. , 2003, 21, pp. 601-612.
      • Selje
    Wikström, A. (1970): Electron micro-probe studies of the alteration of omphacite in eclogites from the Nordfjord area, Norway. Norsk Geologisk Tidsskrift 50, 136-155
        • Nordpollen
    J. Metam. Geol. , 2003, 21, pp. 601-612.
    J. Metam. Geol. , 2003, 21, pp. 601-612.
    • Svalbard
      • Spitsbergen
        • Oscar II land
    MINERALOGICAL MAGAZINE, JUNE 1984, VOL. 48, PP. 30l-3
    • Troms
      • Tromsø
    Bøe, P. (1997): Eklogittfjellet Tromsdalstind. STEIN 24 (2), 48-49
    Pakistan
     
    • North-West Frontier Province
      • Mansehra District
        • Khagan valley
    Eur. J. Mineral. , 1991, 3, pp. 613-618.
    Poland
     
    • Małopolskie
      • Olkusz District
    Ref.: Kucha H., Jędrzejczyk B. 1995: Primary minerals of mining and metallurgical Zn-Pb dumps at Bukowno, Poland, and their stability during weathering. Mineralogia Polonica, vol. 26, No 2, 75-99
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    [World of Stones 12:49]
        • Daldyn-Alakit kimberlite field
          • Alakit-Markha
    Zinchuk, N.N., and Koptil, V.I. (2007): Geology of Ore Deposits 49(4), 308-317.
          • Daldyn
    http://www.geology.utoronto.ca/faculty/schulze/eclogite.table.1.html
    Slovenia
     
    Franz Bernhard, 2005
    South Africa
     
    • Free State Province
      • Boshof
    Am Min 62:828-830
    Switzerland
     
    • Ticino (Tessin)
      • Riviera
        • Bellinzona
          • Gorduno
    Journal of Metamorphic Geology, Volume 20 Issue 5 Page 481 - June 2002
    • Wallis (Valais)
      • Zermatt - Saas Fee area
        • Saas Valley
          • Saas Almagell
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 290.
    Turkey
     
    • Central Anatolia Region
      • Eskisehir Province
        • Tavşanlı Zone
    Davis, P.B., and Whitney, D.L. (2006): Journal of Metamorphic Geology 24(9), 823-849.
    • Marmara Region
      • Balikesir Province
    Turkish J. Earth Sci. 9:47-56 (2000)
          • Bayramiç
    Turkish Journal of Earth Sciences, Vol. 9, 2000, pp. 47-56.
    USA
     
    • Arizona
      • Apache Co.
        • Navajo Indian Reservation
          • Monument Valley
            • Dinnehotso
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 102, 260, 318; Watson, K.D. & D.M. Morton (1969), Eclogite inclusions in kimberlite pipes at Garnet Ridge, northeastern AZ, Am.Min.: 54: 267-285.
    • California
      • Fresno Co.
        • Diablo Range
    Essene, E.J. and W.S. Fyfe (1967) Omphacite in California metamorphic rocks. Contributions to Mineralogy and Petrology: 15: 8; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 393.
      • Marin Co.
        • Tiburon Peninsula
      • San Benito Co.
        • Diablo Range
          • New Idria District
    T. Tsujimori et al., Paper N° 21-6, The Geological Society of America, Joint Meeting Cordilleran Section and Pacific Section, 101st Annual Meeting, 29 April-1 May 2005, San Jose, California.
      • Sonoma Co.
        • Cazadero
    Essene, E.J. and W.S. Fyfe (1967) Omphacite in California metamorphic rocks. Contributions to Mineralogy and Petrology: 15, 23 pp.: 4; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 394.
        • Cloverdale
          • North of Cloverdale
    Essene, E.J. and W.S. Fyfe (1967) Omphacite in California metamorphic rocks. Contributions to Mineralogy and Petrology: 15, 23 pp.: 4; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 393.
    http://gsa.confex.com/gsa/2004AM/finalprogram/abstract_78888.htm
          • Mill Creek Road
    Switzer, George S. (1945), Eclogite from the California glaucophane schists: American Journal of Science: 243: 2; Switzer, George S. (1951b) Mineralogy of the California glaucophane schists. California Division of Mines and Geology Bulletin 161: 56-57; Coleman, R.G., D.E. Lee, L.B. Beaty & W.W. Bannock (1965), Eclogites and eclogites: their differences and similarities: Geological Society of America Bulletin: 76: 489; Edgar, A.D., A. Mottana, and N.D. MacRae (1969) The chemistry of cell parameters of omphacite and related pyroxenes. Mineralogical Magazine: 37: 64, 67-68; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 404.
        • Jenner
    http://geology.about.com/library/bl/images/bleclogite.htm
        • Mayacmas Mts (Mayacamas Mts)
          • West Mayacmas District
            • Occidental
    Coleman, R.G., D.E. Lee, L.B. Beaty & W.W. Bannock (1965), Eclogites and eclogites: their differences and similarities: Geological Society of America Bulletin: 76: 489; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 484.
    • Colorado
      • Larimer Co.
    Minerals of Colorado (1997) Eckels, E. B.
    • Maryland
      • Montgomery Co.
        • Rockville
    David Schoeberlein Collection
    • North Carolina
      • Mitchell Co.
        • Cane Creek Section
    J. Metamorphic Geol. 21:685–698 (2003)
    Ref: Stewart, Adams, and Trupe-1997 and Abbott and Raymond-1997
    • Vermont
    Rocks & Min. Vol. 71, (1996)
      • Orleans Co.
    Rocks & Min. Vol. 71, (1996)
    • Washington
      • Okanogan Co.
        • Colville Indian Reservation
    Cannon, B. (1975): Minerals of Washington, p.39
    Venezuela
     
    • Bolívar
    Canadian Mineralogist (2000) Vol. 38, pp. 1347-137
    • Nueva Esparta
      • Margarita Island
    Journal of Petrology (1981) Volume 22; Number 3; Pages 337-362
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 14th Nov 2009 13:26:14