| BLUE JADEITE: A NEW OCCURRENCE OF JADEITITE AT SORKHAN, IRAN, AS A CASE STUDY Roland OBERHÄNSLI§ and Romain...and Sciences, Shahid Bahonar University, Kerman, 76176, Iran Mohssen MOAZZEN Department of Geology, University...University of Tabriz, Tabriz, 51664, Iran Mohsen ARVIN Department of Geology, College of Arts and Sciences...Sciences, Shahid Bahonar University, Kerman, 76176, Iran Abstract A new occurrence of “blue jade” is...within metaultramafic rocks in the Sorkhan area of southeastern Iran. The veins are composed of almost |
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Angiboust, Samuel, Agard, Philippe, Glodny, Johannes, Omrani, Jafar, Oncken, Onno (2016) Zagros blueschists: Episodic underplating and long-lived cooling of a subduction zone. Earth and Planetary Science Letters, 443. 48-58 doi:10.1016/j.epsl.2016.03.017 |
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| France Geological Survey of Iran, Meraj Avenue, Azadi Sq., Tehran, Iran a r t i c l e i n f o Article...exposure along the Zagros suture zone in Southern Iran are reported here. These blueschists, now exposed...comprising lawsonite, glaucophane, aragonite, omphacite and garnet. P –T –t reconstruction indicates that...ophiolites and Mesozoic arc-related magmatic bodies in Iran (modified after Shafaii Moghadam and Stern, 2011)...the accreted material. The Zagros belt in Southern Iran, at the junction between Alpine and Himalayan orogens |
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Tsujimori, Tatsuki, Harlow, George E. (2012) Petrogenetic relationships between jadeitite and associated high-pressure and low-temperature metamorphic rocks in worldwide jadeitite localities: a review. European Journal of Mineralogy, 24 (2) 371-390 doi:10.1127/0935-1221/2012/0024-2193 |
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| and Papua New Guinea), Alpine-Himalayan (Italy, Iran, Greece, and Myanmar), and Caledonian (Russia and...mafic rocks eschweizerbart_xxx R P 14. Sorkhan, Iran N/A Cretaceous? N/A P, R 11. Cyclops Mountain...HP-LT conditions, including garnet amphibolite, _omphacite_-taramite-zoisite rock, albitite, phengiticmuscovite...lower P-T trajectory with garnets containing both omphacite and clinozoisite and interpreted P-T of 550–600...pumpellyitebearing jadeitite, lawsonite eclogite, _omphacite_-glaucophane rocks, and lawsonite blueschist have |
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Shi, Guanghai, Jiang, Neng, Wang, Yuwang, Zhao, Xin, Wang, Xia, Li, Guowu, Ng, Enoch, Cui, Wenyuan (2010) Ba minerals in clinopyroxene rocks from the Myanmar jadeitite area: implications for Ba recycling in subduction zones. European Journal of Mineralogy, 22 (2) 199-214 doi:10.1127/0935-1221/2010/0022-1998 |
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| part of multi-phase pseudomorphs in chromian omphacite rock (omphacitite). The latter rock type was formed...body and cymrite at Pacheco Pass, in San Benito County, California (Coleman, 1961; Essene, 1967). Banalsite...Kotelnikov, 1991). Jadeitite in the Sorkhan area of south-eastern Iran contains minor amounts of barian...kosmochlor, chromian jadeite and some chromian omphacite appear as corona aggregates or small blocks (Shi...(Fig. 3a) is comprised predominantly of chromian omphacite with minor sodic and sodic-calcic amphiboles and |
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Harlow, George E., Tsujimori, Tatsuki, Sorensen, Sorena S. (2015) Jadeitites and Plate Tectonics. Annual Review of Earth and Planetary Sciences, 43. 105-138 doi:10.1146/annurev-earth-060614-105215 |
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| K)AlSiO4 — Ol Olivine (Mg,Fe)2 SiO4 — Omp Omphacite Ideally (CaNa)[(Mg,Fe)Al](Si2 O6 )2 Pyroxene...(in debate) Protolith age 17 December 2014 Sorkhan, Iran PS , RS Type Syros and Tinos, Cyclades, Greeceh...rock composed principally of clinopyroxene of omphacite composition, nominally (CaNa)[(Mg,Fe)Al](Si2 O6...5 0. 0.4 0 7 0.8 . 0 84 800 T (°C) Locations Iran Monviso complex, Italian Alps Northern Motagua mélange...use only. Graphite Jadeite Lawsonite Nepheline Omphacite Paragonite Rutile Quartz sla SW b Jap su a rfa |
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Cárdenas-Párraga, Juan, García-Casco, Antonio, Harlow, George E., Blanco-Quintero, Idael Francisco, Agramonte, Yamirka Rojas, Kröner, Alfred (2012) Hydrothermal origin and age of jadeitites from Sierra del Convento Mélange (Eastern Cuba) European Journal of Mineralogy, 24 (2) 313-331 doi:10.1127/0935-1221/2012/0024-2171 |
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| inclusions and omphacite exsolution in jadeite crystals, as well as replacement or infilling by omphacite. Minor...environment. Late-stage crystallizations include omphacite, albite and epidote from fluids nearly saturated...mélange (Garcı́a-Casco et al., 2009) in Cuba, Sorkhan, Iran (Oberhänsli et al., 2007) and Rı́o San Juan...Table 2. Representative analyses of jadeite and omphacite (tie-lines of Fig. 6). Sample SiO2 TiO2 Al2O3...composed predominantly of jadeite and less abundant omphacite (.80 % modal pyroxene), with other constituents |
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Harlow, George E., Flores, Kennet E., Marschall, Horst R. (2016) Fluid-mediated mass transfer from a paleosubduction channel to its mantle wedge: Evidence from jadeitite and related rocks from the Guatemala Suture Zone. Lithos, 258. 15-36 doi:10.1016/j.lithos.2016.04.010 |
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| clinozoisite-eclogite, and jadeitite, albitite, mica rock, and _omphacite_-taramite TE rock (Harlow, 1994, Harlow et al...mica albite rock, etc.) RI as well as taramite omphacite rocks, chloritite and rarely garnet metabasite...occasional dark blue-green veins colored by blue omphacite (Harlow et al., 2004b). Coexisting lithologies...blueschist-altered eclogite, lawsonitite, glaucophane-omphacite rock, garnet-quartz-phengite schist, and graphite-bearing...Coexisting tectonic blocks in the area SC are _omphacite_-glaucophane blueschist and epidote-amphibolite |
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Wen, Jiabao, Shi, Guanghai, Xing, Biqian, Long, Taafee, Zhang, Jinhong (2023) Unique Interstitial Textures within Coarse-Grained Jadeitite from Kazakhstan and Their Significance in Locality Identification. Minerals, 13 (4) 513 doi:10.3390/min13040513 |
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| crystals, minor omphacite, and little analcime, and Type II, comprising mainly omphacite and analcime,...Papua New Guinea [13], Greece [14], Italy [15], Iran [16], Myanmar [17,18], Russia [19], and Kazakhstan...this location is jadeite + albite + analcime + omphacite, which can be found in block and water drop shapes...(Type I) and jadejadeite–_omphacite_–analcime domains (Type II). ite–_omphacite_–analcime domains (Type II)...predominately of jadeite crystals (~90 vol.%), minor omphacite (~9I MTDs vol.%) consists and analcime (~1 vol |
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Lü, Zeng, Zhang, Lifei, Chen, Zhenyu (2014) Jadeite- and dolomite-bearing coesite eclogite from western Tianshan, NW China. European Journal of Mineralogy, 26 (2) 245-256 doi:10.1127/0935-1221/2014/0026-2373 |
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| 100037, China Abstract: Jadeite associated with omphacite has been reported from high-pressure, low-temperature...consists of quartz, garnet, carbonate, albite, omphacite, white mica and Na-Ca amphibole. The modal contents...accompanied by patchy omphacite. Micro-Raman analyses show that jadeite and omphacite have different diagnostic...and consists of lath-like paragonite, quartz, omphacite and titanite, with or without glaucophane. Matrix...paragonite, titanite and barroisite, with or without omphacite, constituting a multi-phase aggregate. These two |
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García-Casco, Antonio, Rodríguez Vega, A., Cárdenas Párraga, J., Iturralde-Vinent, M. A., Lázaro, C., Blanco Quintero, I., Rojas Agramonte, Y., Kröner, A., Núñez Cambra, K., Millán, G., Torres-Roldán, R. L., Carrasquilla, S. (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 doi:10.1007/s00410-008-0367-0 |
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| are varied and include combinations of jadeite, omphacite, albite, paragonite, analcime, clinozoisite-epidote...were richer in Mg–Ca, favouring the formation of omphacite and Mg–Ca rich jadeite in open voids and the replacement...replacement of earlier jadeite by fine-grained omphacite ? jadeite at 550–560°C. This new occurrence of...new jadeitite localities have been documented in Iran (Oberhänsli et al. 2007) and Dominican Republic...various stages of evolution including jadeite, omphacite, albite, paragonite, analcime, clinozoisite-epidote |
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NISHIYAMA, Tadao, MORI, Yasushi, SHIGENO, Miki (2017) Jadeitites and associated metasomatic rocks from serpentinite mélanges in the Nishisonogi unit, Nagasaki Metamorphic Complex, western Kyushu, Japan: a review. Journal of Mineralogical and Petrological Sciences, 112 (5) 197-216 doi:10.2465/jmps.170322 |
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| associated with albitite and _omphacite_–bearing rocks such as _omphacite_–bearing metagabbros and omphacitite...facies metamorphism according to the occurrence of omphacite and magnesio–riebeckite (Nishiyama and Miyazaki...scientific research can be donated by the authors. _Omphacite_–bearing rocks occur also in the Mie mélange and...meta–hornblendite, albitite, zoisite rock, rodingite, _omphacite_–bearing metagabbro, omphacitite, and jadeitite...in a very limited area together with albitite, _omphacite_–bearing metagabbro and omphacitite (Nishiyama |
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Maresch, Walter V., Grevel, Christiane, Stanek, Klaus Peter, Schertl, Hans-Peter, Carpenter, Michael A. (2012) Multiple growth mechanisms of jadeite in Cuban metabasite. European Journal of Mineralogy, 24 (2) 217-235 doi:10.1127/0935-1221/2012/0024-2179 |
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| jadeite, the latter with rims and patches of omphacite. TEM observations indicate extensive replacement...replacement of magmatic pyroxene by jadeite and omphacite along a broad front encroaching upon the augite...presumably plagioclase was formerly present. Omphacite dominates where augite is internally replaced...are replaced by jadeite together with lesser omphacite in epitactic relationship with the enclosing augite...pumpellyite is associated with the omphacite. (3) Jadeite þ omphacite þ pumpellyite þ chlorite with irregular |
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Yui, Tzen-Fu, Fukoyama, Mayuko, Iizuka, Yoshiyuki, Wu, Chao-Ming, Wu, Tsai-Way, Liou, J.G., Grove, Marty (2013) Is Myanmar jadeitite of Jurassic age? A result from incompletely recrystallized inherited zircon. Lithos, 160. 268-282 doi:10.1016/j.lithos.2012.12.011 |
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| (Burma) can be divided into the Western province and the Eastern province, separated by the Sagaing fault (Fig...The Western province is also named as the Burma microplate, whereas the Eastern province is part of the...onshore along the western margin of the Western province (the Burma microplate) marks the presently active...subduction system (Mitchell, 1993). The Eastern province of Myanmar is composed of the Paleozoic Mogok...prominent metamorphic belts within the Western province (Fig. 1). These three metamorphic belts, from |
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Hunziker, D., Burg, J.-P., Moulas, E., Reusser, E., Omrani, J. (2017) Formation and preservation of fresh lawsonite: Geothermobarometry of the North Makran Blueschists, southeast Iran. Journal of Metamorphic Geology, 35 (8) 871-895 doi:10.1111/jmg.12259 |
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| Geothermobarometry of the North Makran Blueschists, southeast Iran D. HUNZIKER1, J.-P. BURG1, E. MOULAS2, E. REUSSER2...Switzerland 3 Geological Survey of Iran, Azadi Square, Meraj Avenue, Teheran, Iran Short Title: Lawsonite-blueschists...North Makran, Iran ABSTRACT A low-grade metamorphic “Coloured Mélange” in North Makran (SE Iran) contains...kbar at 350-450 °C are recorded by barroisite, omphacite and rutile assemblages before entering into the...Okay, 1989; Maruyama et al., 1996). In southeast Iran, the Makran accretionary wedge developed above the |
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Schertl, Hans -Peter, Maresch, Walter V., Stanek, Klaus P., Hertwig, Andreas, Krebs, Martin, Baese, Rauno, Sergeev, Sergey S. (2012) New occurrences of jadeitite, jadeite quartzite and jadeite-lawsonite quartzite in the Dominican Republic, Hispaniola: petrological and geochronological overview. European Journal of Mineralogy, 24 (2) 199-216 doi:10.1127/0935-1221/2012/0024-2201 |
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| thickness in blocks of jadeitelawsonite- or _omphacite_-garnetbearing blueschist of the mélange. Two...important phases so far found in both suites are omphacite, phengite, glaucophane, epidote, albite, calcite...high-pressure matrix minerals such as jadeite and omphacite, indicating coeval zircon growth. The cores of...Tsujimori & Harlow, 2012), and an isolated occurrence in Iran without coexisting quartz (Oberhänsli et al., 2007)...nodules with Jd core and Omp rim (e.g., Fig. 4b) _omphacite_-garnet-bearing blueschist, both as concordant |
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Shi, Guanghai, Harlow, George E., Wang, Jing, Wang, Jun, Enoch, N.G., Wang, Xia, Cao, Shu Min, Enyuancui, W. (2012) Mineralogy of jadeitite and related rocks from Myanmar: a review with new data. European Journal of Mineralogy, 24 (2) 345-370 doi:10.1127/0935-1221/2012/0024-2190 |
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| shiguanghai@263.net.cn; shigh@cugb.edu.cn 3 Guangdong Province Material Testing Center, Guangzhou 510080, PR...species, including jadeite, omphacite, kosmochlor, Cr-bearing jadeite-omphacite, albite, celsian, banalsite...newly reported here. Amphiboles, kosmochlor and omphacite formed closely related to the paragenetic sequence...jadeite, and the clinopyroxene in mafic rock by omphacite. Relict ilmenite replaced by titanite in omphacitite...species of amphibole, terrestrial kosmochlor and omphacite (Ou Yang, 1984; Harlow & Olds, 1987; Shi et al |
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Qi, Min, Xiang, Hua, Zhong, Zeng-Qiu, Qiu, Hua-Ning, Wang, Hao, Sun, Xi-Lin, Xu, Bin (2013) 40Ar/39Ar geochronology constraints on the formation age of Myanmar jadeitite. Lithos, 162. 107-114 doi:10.1016/j.lithos.2012.12.012 |
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| Jd49–53Ae0–2Aug39–42, which correspond to the composition of omphacite. According to the IMA amphibole nomenclature (Leake...of P = 1.5 GPa and T = 370 °C from a jadeite–_omphacite_–amphibole equilibria calculation using a pseudo-section...2007. Trace element compositions of jadeite (+omphacite) in jadeitites from the Itoigawa-Ohmi district...jadeite: a new occurrence of jadeitite from Sorkhan, Iran, as a case study. The Canadian Mineralogist |
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(2017) Chapter 13 Jadeitite and other high-pressure metamorphic rocks from the Jade Mines Belt, Tawmaw area, Kachin State, northern Myanmar. Geological Society, London, Memoirs, 48. Geological Society of London. 295-315 doi:10.1144/m48.13 |
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| carbon inclusions, while dark green or opaque omphacite is due to its composition i.e. Jd36.4–63.6 Ae4...magnesioriebeckite; Ms, muscovite; Ol, olivine; Omp, omphacite; Pg, paragonite; Ph, phengite; Qz, quartz; Rbk...‘impure jadeitite’ is jadeite + kosmochlor + omphacite + amphiboles + albite. Pure jadeitite is made...Kiénast 1986; Harlow & Olds 1987) (Fig. 13.3i). Omphacite is also an associated mineral in jadeitite, colourless...debate) Zrn: 163 Ma Eocene? NA Lws eclogite Sorkhan, Iran Jade Mine Tract, Myanmari P PS, RS NA Zrn: |
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Shi, Guanghai, Lei, Weiyan, He, Huaiyu, Ng, Yi Nok, Liu, Yan, Liu, Yingxin, Yuan, Ye, Kang, Zhijuan, Xie, Gen (2014) Superimposed tectono-metamorphic episodes of Jurassic and Eocene age in the jadeite uplift, Myanmar, as revealed by 40Ar/39Ar dating. Gondwana Research, 26 (2) 464-474 doi:10.1016/j.gr.2013.08.007 |
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| of kosmochlor, Cr-bearing jadeite, Cr-bearing omphacite and jadeitized rodingite (Shi et al., 2005a; Yi...al., 2011 and references therein). Likewise, the Iran jadeitite veins lie between the Zagros fold-and-thrust...(northern continental margin of Tethys) in southeastern Iran (Oberhänsli et al., 2007). The New Idria jadeitite-bearing...magmatic–metallogenic system, Tongling ore cluster region, Anhui Province, China. International Geology Review 53, 449–476...jadeite: a new occurrence of jadeitite from Sorkhan, Iran, as a case study. Canadian Mineralogists 45 |
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Ao, A., Bhowmik, S. K. (2014) Cold subduction of the Neotethys: the metamorphic record from finely banded lawsonite and epidote blueschists and associated metabasalts of the Nagaland Ophiolite Complex, India. Journal of Metamorphic Geology, 32 (8) 829-860 doi:10.1111/jmg.12096 |
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| Prograde HP/LT metamorphism stabilized lawsonite + omphacite (XJd = 0.50–0.56 to 0.26–0.37) + jadeite (XJd...lawsonite + glaucophane/ferroglaucophane epidote omphacite (XJd = 0.34) + chlorite + phengite (Si = 3.5 a...produced a sequence of mineral assemblages from omphacite and lawsonite-absent, epidote + glaucophane/ferroglaucophane...textures (sample NOC58, Fig. 3a), thinly banded, _omphacite_-absent EBS with minor lawsonite (samples NOC57...NOC57 & NOC76, Fig. 3d), marble and _omphacite_-bearing EBS (sample NOC75) (Fig. 2c). Repetitive centimetre- |
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Tsujimori, T., Ernst, W.G. (2014) Lawsonite blueschists and lawsonite eclogites as proxies for palaeo-subduction zone processes: a review. Journal of Metamorphic Geology, 32 (5) 437-454 doi:10.1111/jmg.12057 |
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| metabasite in which almandine-rich garnet and omphacite are present as an equilibrium assemblage, regardless...plagioclase-free rock composed of >75 vol% of omphacite + garnet (Desmons & Smulikowski, 2007). Throughout...transition, lawsonite coexists with glaucophane, omphacite and garnet (Fig. 2i). The preservation of pristine...jadeite partially replace matrix eclogite facies omphacite (see Tsujimori et al., 2007) [X-ray (Ca) image]...metamorphism is suggested by the presence of jadeite-, _omphacite_- and/or glaucophane-rich HP metasomatic veins |
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Chen, An-Xia, Li, Yuan-Hong, Chen, Yi, Yu, Hui-Min, Huang, Fang (2020) Silicon isotope composition of subduction zone fluids as recorded by jadeitites from Myanmar. Contributions to Mineralogy and Petrology, 175 (1) doi:10.1007/s00410-019-1645-8 |
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| euhedral-subhedral jadeite grains (Fig. 3b), with minor omphacite, amphibole, albite, and zircon (Table S1). The...Cr-jadeite, 19–26% of kosmochlor, and 4–10% of omphacite. However, sample MDB1 has ~ 53% of kosmochlor...(Fig. 3d), associated with minor jadeite and omphacite, commonly occur as a blackwall along the boundaries...replacement of chromite (Harlow and Olds 1987), and omphacite were formed by the replacement of clinopyroxene...(2007) Trace element compositions of jadeite (+omphacite) in jadeitites from the Itoigawa-Ohmi district |
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Rajkakati, M., Bhowmik, S.K., Ao, A., Ireland, T.R., Avila, J., Clarke, G.L., Bhandari, A., Aitchison, J.C. (2019) Thermal history of Early Jurassic eclogite facies metamorphism in the Nagaland Ophiolite Complex, NE India: New insights into pre-Cretaceous subduction channel tectonics within the Neo-Tethys. Lithos, 346. 105166 doi:10.1016/j.lithos.2019.105166 |
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| compositional (e.g. compositional zoning in garnet, omphacite, epidote, amphibole and phengite) features amenable...garnet (5-7 mm grain diameter) (~18 modal%) and omphacite (2-5 mm grain diameter) (~19%) enveloped by a...(Fig. 3a, 3b, 3d). Sample N40B is a composite, _omphacite_-rich (~37-57%) eclogite (Fig. 3e) collected from...3b). Pale green layers dominated by foliated omphacite (Fig. 3f) alternate with darker barroisite-rich...diameter), ED enveloped by finely foliated omphacite (Fig. 3e, f) occurs throughout the sample (Fig |
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Flores, Kennet E., Martens, Uwe C., Harlow, George E., Brueckner, Hannes K., Pearson, Norman J. (2013) Jadeitite formed during subduction: In situ zircon geochronology constraints from two different tectonic events within the Guatemala Suture Zone. Earth and Planetary Science Letters, 371. 67-81 doi:10.1016/j.epsl.2013.04.015 |
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| serpentinite mélange that hosts garnet amphibolite, omphacite_–taramite metabasite, jadeitite, albitite, and...lesser amounts of paragonite (Pg), phengite (Ph), omphacite (Omp), albite (Ab), minor zircon (Zrn), apatite...Mon—monazite, Ms—Muscovite, Ne—nepheline, Omp—_omphacite, Pg—paragonite, Ph— phengitic muscovite, Phl—phlogopite...Omp is unaffected. Zircons are contained within omphacite and albite and contain Omp and fluid inclusions...record the primary mineralization (i.e., jadeite, omphacite, and zoisite) and fluid crystallization of the |
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(2014) The Journal of Gemmology Vol. 34 (3) Gem-A |
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| Articles 210 A Comparative Study of Jadeite, Omphacite and Kosmochlor Jades from Myanmar, and Suggestions...term fei cui, lists properties for jadeite jade, omphacite jade and kosmochlor jade, and briefly reviews...supplier, the fluorite was mined from Cao Bang Province, northeast of Yen Bai. The crystal surfaces were...29.05 ct fluorite is reportedly from Cao Bang Province in northern Vietnam. Photo by Bilal Mahmood. ...at the Oceanview mine, Pala District, San Diego County, California. Rocks & Minerals, 86(1), 41-49, http://dx |
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