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Kornerupine from
Namaqualand metamorphic complex, Namakwa District Municipality, Northern Cape, South Africa


Locality type:Complex
Classification
Species:Kornerupine
Formula:Mg3Al6(Si,Al,B)5O21(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Kornerupine data
Locality Data:Click here to view Namaqualand metamorphic complex, Namakwa District Municipality, Northern Cape, South Africa
Data Identifiers
Mindat Occurrence Record ID:979691
Long-form Identifier:1:3:979691:1
GUID (UUID V4):640ad131-ebb3-4a74-a684-30ab240f7945
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
of the westernNamaqualandmetamorphiccomplex' South Africa JonN M. Moonn, Dlvro J. Wlrnns* Department of...and Geology, University of Cape Town, Private Bag, Rondebosch7700, South Africa L. NrvnN Mlnclnnr Department...Chemistry, University of Cape Town, Private Bag, Rondebosch7700, South Africa Ansrnlcr A new borosilicate...facies of the Namaqualand metamorphic complex at Bok se Puts, Namaqualand, South Africa. The mineral occurs...occurs in association with kornerupine and grandidierite in a sillimanite-hercynite-rich band in a s
Journal (article/letter/editorial)
orthopyroxene-phlogopite rocks from Namaqualand, South Africa John M. Moore and David J. Waters* Department...Mineralogy and Geology, Universityof Cape Town, Rondebosch 7700 (South Africa) (Received February 10, 1989;.../orthopyroxene-phlogopite rocks from Namaqualand, South Africa. Chem. Geol., 85:77-100. A suite of c...granulite-facies region of the western Namaqualand Metamorphic Complex. The gneisses are directly associated...rocks have been widely studied in a number of metamorphic terranes, commonly of Proterozoic age. They occur
Journal (article/letter/editorial)
Springer-Verlag 1985 Kornerupine in Mg-Al-rich gneisses from Namaqualand, South Africa: mineralogy and evidence...late-metamorphic fluid activity D.J. Waters and J.M. Moore Geology Department, University of Cape Town...Town, Rondebosch, 7700, South Africa Abstract. Three kornerupine occurrences are reported in distinctive...paragneisses from the Namaqualand Metamorphic Complex in South Africa. Kornerupine coexists stably with...Tourmaline of a texturally older generation than kornerupine is commonly present in the same samples. Ten
Journal (article/letter/editorial)
Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a...Rhodes University, P O Box 94, Grahamstown, 6140 South Africa Department of Earth Sciences, Oxford University...%). Fe-Al-B-rich lenses with prismatine (or kornerupine) constitute a distinctive type of B-enrichment...another of these localities, Bok se Puts, Namaqualand, South Africa, are consistent with this scenario. Under...conditions, tourmaline would have broken down to give kornerupine-prismatine (Jother borosilicates) plus a sodic
Journal (article/letter/editorial)
Metamorphic History of Sapphirine-bearing and Related Magnesian Gneisses from Namaqualand, South Africa...Department of Geology, University of Cape Town, Rondebosch, 7700 South Africa ABSTRACT Sapphirine occurs with...paragneisses within the low P, high T Namaqualand Metamorphic Complex. The gneisses reveal a three-stage...cross-cutting, mainly hydrous minerals (gedrite, kornerupine, phlogopite) is sporadically developed. The wide...importance and/or more CO2-rich composition of the metamorphic fluid under granulite facies conditions in these
Journal (article/letter/editorial)
PP 7 1 3 - 7 1 8 Werdingite from the Urungwe District, Zimbabwe Department of Geological Sciences, University...e - f a c i e s rock in the Namaqualand complex, Bok se Puts, South Africa, where it is inferred to have...Magondi belt in the Urungwe District, 60 km westnorth-west of Karoi, northern Zimbabwe. The geologic situation...with those at the type locality. Grandidierite, kornerupine and tourmaline were originally described from...details on the werdingite occurrence in the Urungwe District. Geologic situation and mineralogy of the werdingite-bearing
Journal (article/letter/editorial)
HaO-deficient, mineralizingfluidsof crustal(metamorphic)or mantleorigin. However, the lithological, mineralogical...Steenkampskraal monazitemine,sit- uated 350 km north of Cape Town (Fig. 1). The Steenkampskraal mine first operatedfrom...includingca.600 ppmUaOsandtracesof gold(Pike, Namaqualand(Figs. 2 and 3; Martini and Hammer1959; von BackstriSm...1987). Mostof theseoccurrences are advanced from south to north to intersect the ore. in the form of veins...MetamorphicComplex. 996 ANDREOLIETAL. OKIEP • DISTRICT 'PRAND {AAL TRICT ¸ 0 20 40 I I I I
Report (issue)
110:45(2) ± X-ray Powder Pattern: Bok se Puts Farm, South Africa. 5.23 (100), 5.43 (80), 4.98 (75), 2.708 (60)...Total 99.08 Chemistry: (1) Bok se Puts Farm, South Africa; by electron microprobe, B by ICP; corresponds...biotite gneisses. Association: Distribution: Kornerupine, grandidierite, sillimanite, zircon, rutile,...hercynite. On the Bok se Puts Farm, Namaqualand, Cape Province, South Africa. Name: For Dr. GÄunter Werding...Material: South African Museum, SAMG 7140{7150, and the University of Cape Town, Cape Town, South Africa. References:
Journal (article/letter/editorial)
J . metamorphic Geol. 1988, 6 , 387-404 Partial melting and the formation of granulite facies assemblages...assemblages in Namaqualand, South Africa D.J. WATERS, Department of Geology, University of Cape Town, Rondebosch...Rondebosch, 7700 South Africa Abstract. Dehydration-melting reactions, in which water from a hydrous phase...metapelite, biotite gneiss and metabasic gneiss in Namaqualand contain coarse-grained, discordant, unfoliated...Cambridge, Downing Street. Rondebosch, 7700 South Africa. H20in the melt was released as vapour on crystallization
Journal (article/letter/editorial)
to W - M o mineralization in western Namaqualand, South Africa J.G. R a i t h Institut fiir Geowissenschaften...Spektakel Suite in the western Namaqualand Metamorphic Complex, South Africa. It intruded synkinematically...q u a l a n d M e t a m o r p h i c Complex represents a complex Proterozoic high-grade terrain (supracrustal...mafic intrusives in the west (Okiep C o p p e r District; L o m b a a r d et al., 1986 ). Tungsten deposits...paper, are also present in the Okiep C o p p e r District. Earlier studies concluded that these tungsten
Journal (article/letter/editorial)
and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...University of the Western Cape, Bellville, Western Cape, 7535, South Africa b Schlumberger Petroleum...Matieland, Western Cape, South Africa d Department of Geological Sciences, University of Cape Town, Rondebosch
Journal (article/letter/editorial)
bearing granulite from the Limpopo Belt, southern Africa: Implications for a P–T path Toshiaki Tsunogae...O. Box 524, Auckland Park 2006, Republic of South Africa Received 31 May 2005; accepted 30 March 2006...Garnet + corundum; Granulite; Limpopo Belt; Southern Africa 1. Introduction Since the first description of...Limpopo Belt of southern Africa is a classic example of a high-grade metamorphic terrane situated between...Craton in the north and the Kaapvaal Craton in the south (Fig. 1) (e.g., van Reenen et al., 1987, 1990; Rollinson
Journal (article/letter/editorial)
Chemistry, University of Cape Town, Private Bag, RondeboschTTOO,South Africa D^q,\aoJ. Warnnsr* JonN...of Geology, University of Cape Town, Private Bag, RondeboschTT0O,South Africa Ansrn-lcr Werdingite,(Mgoro...borosilicatemineral newly recorded from Namaqualand, South Africa, which has a structure basedon chains...(1990). It occurs in a high grade metamorphic rock associatedwith kornerupine, sillimanite, hercynite, grandidierite...granulite-faciesregion of the Namaqualand metamorphic complex, South Africa. Its powder diffraction pattern
Journal (article/letter/editorial)
Mineral-Chemical and Isotopic Studies of Namaqualand Granulites, South Africa: A Grenville Analogue Tom N. Clifford...University of the Witwatersrand, Johannesburg, South Africa 2 Montan-Universitgt, Leoben, Austria 3 National...Physical Research Laboratory, C.S.I.R., Pretoria, South Africa 4 Department of Earth Sciences, University of...Abstract. The northwestern part of South Africa and southern South-West Africa/Namibia is amongst the most...most extensive granulite terranes in Africa. This work reports the results of electron microprobe studies
Journal (article/letter/editorial)
Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa e-mail: simon.schorn@hotmail...Subprovince of the Namaqua–Natal Metamorphic Complex (South Africa) reveal a disparity of some 60–70...60–70 ◦ C in estimated peak metamorphic temperature. Aluminous metapelites equilibrated at ∼770–790 ◦ C whereas...specific heat budget. Our results caution that the metamorphic conditions derived from pelitic granulites should...high–T-low–P granulite metamorphism, Namaqua–Natal Metamorphic Complex, orogenic heat budget, thermal buffering
Journal (article/letter/editorial)
Chemical dating of monazite gave an Irumide age of metamorphic crystallization of 1044±16 Ma. A minor fraction...Kelsey et al. 2005, Brandt et al. 2007) featuring a complex history of mineral assemblages. Seifert (1974)...sapphirine rocks. A new age dating, using abundant metamorphic monazite in the sapphirine rock, independently...domain of the Irumide metamorphism further to the south, and showing that the metamorphism in the Lower...orogenic system of southern Africa (Fig. 1a). It is a several km thick complex of schists with abundant
Journal (article/letter/editorial)
Chonbuk National University, Chonju 561 − 756, South Korea Division of Evolution of Earth Environments...rock in the southwestern part of the Highland Complex in Sri Lanka. Garnet porphyroblasts in the matrix...ultrahigh − temperature (UHT) metamorphic conditions in southwestern Highland Complex, and also suggest the existence...ultrahigh − temperature (UHT) metamorphism. The metamorphic rocks of Sri Lanka have been subdivided into...These are: Wanni Complex, Kadugannawa Complex, Highland Complex and Vijayan Complex (Fig. 1). Among these
Journal (article/letter/editorial)
Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom 2 Oxford...calculated at the interpreted conditions of metamorphic equilibration should resemble those in the sample...tectonic environments and reached different peak metamorphic pressure–temperature (P –T ) conditions. Whilst...prograde and retrograde tectonothermal evolution of metamorphic rocks is comparison of the modes, compositions...recently, appropriate thermodynamic models for complex solid solutions and melts applicable to mafic bulk
Journal (article/letter/editorial)
Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Christophe Ballouard, Marlina A. Elburg...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa), Ore Geology Reviews (2019), doi: https://doi...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Authors: Christophe Ballouard1*, Marlina...Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa 2 Spectrum Analytical Facility, University...Park, 2006, South Africa 3 Council for Geoscience, P.O. Box 775, Upington, South Africa, 8800 *Corresponding
Journal (article/letter/editorial)
manuscript accepted 2 February 1990) ABSTRACT Kornerupine and associated minerals in 31 samples of high-grade...X-ray powder diffraction. For 11 samples of kornerupine and three samples of biotite (F only) analysed...B 2 O 3 =(M-01 wt.%; and F = 007-077 wt.% in kornerupine, whereas ion microprobe analyses on other kornerupines...or 21-5 (O) in kornerupine. In general, Li/Fe ratios decrease as follows: kornerupine » sapphirine ^...Na>004, Li/Fe decreases as follows: cordierite > kornerupine. Sapphirine and sillimanite are the only associated
Report (volume)
point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be “a round...formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table 6, pp. 402-403: Occurrences...Chapter 9. Table 13, pp. 441-443: Occurrences of kornerupine Chapter 9. Table 17, pp. 461-462: B,03 contents...Selected tourmaline-bearing vein deposits in metamorphic Chapter 11. Table 4,p.581: Selected tourmaline-bearing... nate mee b RE eE Enc 2 140 Kornerupine and prismatine (kornerupine $.1.).................seeeeeees
Journal (article/letter/editorial)
Al-analogues albite and anorthite, respectively. Kornerupine stability decreases with decreasing boron content...principle, occur as minerals of ultrahigh-pressure metamorphic rocks. Boron initially enriched in crustal rocks...nearly ubiquitous in igneous, sedimentary and metamorphic rocks, except for the highest-temperature environments...considerable depths in the Earth’s mantle during their metamorphic history (Chopin, 1984; Schreyer, 1988) necessarily...rights reserved. PII SOO24-4937(97)00024-S metamorphic rocks of the Dora Maira Mas- 252 W. Schreyer
Report (volume)
point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be "a round...formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table 6, pp. 402-403: Occurrences...Chapter 9. Table 13, pp. 441-443: Occurrences of kornerupine sensu stricto (K) and prismatine (P) Chapter...Selected tourmaline-bearing vein deposits in metamorphic rocks Chapter 11. Table 4, p. 581: Selected tourmaline-bearing...Werdingite Kornerupine and prismatine (komerupine s.l.) Magnesiodumortierite Alkali-free dravite Complex tourmalines
Journal (article/letter/editorial)
assemblages, as well as ternary feldspars and metamorphic pyroxenes. The worldwide number of UHT localities...evolution of UHT rocks; 5) the duration of UHT metamorphic episodes, which is a very active field of research...that are typically unable to account for UHT metamorphic conditions in the deep crust, it may be possible...newly held consensus by the entirety of the metamorphic community. However, it is unequivocal on the...The acceptance of extreme metamorphic temperatures by the entire metamorphic community has taken several
Report (issue)
SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES
 
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