	*(2001) Diamond Geology. De Beers Group.*	Book
	Phase 5. Sample Treatment D) World Production E) South African Diamond Occurrences 1. Large Kimberlite...Koffiefontein 2. Smaller mineralised kimberlites in South Africa 2.1 The Oaks 2.2 The Zebediela Kimberlites 2...2.3 The Bellsbank-Barkly West Area 2.4 The Boshof Area 2.5 Theunnissen and Virginia 2.6 The Loxtondal... their relative production contributions in South Africa were, primary (kimberlite) 8.63 million carats...Premier mine. The proportion of gems in the West Coast marine deposits is over 98%. The MIBA mine in the
	O'Reilly, Suzanne Y., Griffin, W.L. (1995) Trace-element partitioning between garnet and clinopyroxene in mantle-derived pyroxenites and eclogites: P-T-X controls. Chemical Geology, 121 (1) 105-130 doi:10.1016/0009-2541(94)00147-z	Journal (article/letter/editorial)
	contrasting geothermal gradients (40-90 mW m 2) from South Africa, and western and eastern Australia. These data...partitioning. The samples have been selected to be as free of alteration and disequilibrium microstructures...P - T conditions (Fig. 1). 2.1. Xenoliths from South African kimberlites These samples are xenoliths...(K.S. Viljoen, 1994 and in prep.) and Monastery Mine (Moore et al., 1991). Several extreme compositions...stable only at P > 40 kbar on this geotherm. 2.2. South African and Australian diamond inclusions These
	Burness, S., Smart, K.A., Tappe, S., Stevens, G., Woodland, A.B., Cano, E. (2020) Sulphur-rich mantle metasomatism of Kaapvaal craton eclogites and its role in redox-controlled platinum group element mobility. Chemical Geology, 542. 119476pp. doi:10.1016/j.chemgeo.2020.119476	Journal (article/letter/editorial)
	the Witwatersrand, Private Bag 3, Wits 2050, South Africa Corresponding author: sarab@uj.ac.za; Tel:...University of Johannesburg, 2006 Auckland Park, South* Africa 3 Centre for Crustal Petrology, Department...University, Private Bag of X1, Matieland 7602, South Africa Institut für Geowissenschaften, Universität...also supported by their relatively reducing redox state. Base metal sulphides from the mid-lithospheric...are similar to Karoo flood basalts from southern Africa, suggesting a link between the identified shallow
	*(1877) Mineralogical chemistry. Journal of the Chemical Society, 31. 580pp. doi:10.1039/js8773100580*	Journal (article/letter/editorial)
	these minerals found by the author last year in the south of the Bohemian forest was named Ili7eite. Its formula...breadth of 2$ cm.) are chsracterised by a cubical ROVIC H “ habit,” caused by the predominance of mP. In...Composition of the Melaphyr and Augitic porphyry of South Tyrol. By C. D O E L T E R ( , f i c 7 ~ 7 1 . f...f. f1JL’u ., 1876, 563-564). -The melapliyr of South Tyrol is divided into hornblendic and augitic melaphyr...(2) €€or)i~letLc2e-n,elu2ih2/r. ( 3 ) Melapbyr, free from nugite and horneblentle. The microscopical
	*Dawson, J. Barry (1980) Kimberlites and Their Xenoliths* - Minerals and Rocks No. 15. Springer Berlin Heidelberg. doi:10.1007/978-3-642-67742-7**	Book
	relevant protective laws and regulations and therefore free for general use. 2132/3130-543210 To my wife,...collaboration. Much of my fieldwork in southern Africa has been carried out with the cooperation and assistance...7.3 2.8 2.9 Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . West Africa . . . . . . .... . . . . Central Africa. . . . . . . . . . . . . . . . . . . . . . . East Africa. . . . . . . . . .... . . . . . . . . . . . . . . . Southern Africa . . . . . . . . . . . . . . . . . . . . . U.S.S.R. .
	*Busenberg, Eurybiades (1978) The products of the interaction of feldspars with aqueous solutions at 25°C. Geochimica et Cosmochimica Acta, 42 (11) 1679-1686 doi:10.1016/0016-7037(78)90256-9*	Journal (article/letter/editorial)
	represented by the equation: Mass balance. plagioclase + H&O, + Hz0 = solid products + dissolved species...the composition of the plagioclase is known. A generalized formula for plagioclase can be written as follows:...in the plagioclase formula. If tr++ moles of Na are released by the dissolution of plagioclase in the...between t, and tz; then the number of moles of plagioclase dissolved (N) in the same time interval will...separating the amorphous from the ‘crystalline state’ (ZVYAGIN. 1967). Solution chemistry. The dissolution
	*(2009) Goldschmidt Abstracts 2009 – P. Geochimica et Cosmochimica Acta, 73 (13) doi:10.1016/j.gca.2009.05.012*	Journal (article/letter/editorial)
	Netherlands (chvdw@geo.uu.nl) Estimation of plagioclase (Pl) weathering rates (WPl = ([Pl]/t)×(Q/APl))...discharge (Q). An atempt to relate the weathering of plagioclase to mixtures rich in halloysite and to quantify...terrain modeling software: Vh = V×(Dh/D). The plagioclase log rates (Figure 1) are: –12.4±1.8 (adjusted...A983 -8 Log (W Pl) Figure 1: Log rates of plagioclase. [1] Pacheco F.A.L., Van der Weijden C.H. (2008)...antigorite dehydration producing orthopyroxene and free water. Although this reaction is not expected to
	*(1973) List of contents, author index, subject index and list of referees volume 37 1973. Geochimica et Cosmochimica Acta, 37. doi:10.1016/0016-7037(73)90301-3*	Journal (article/letter/editorial)
	The conaentration aontrol of soluble oopper in B mine toilings streem . . D. A. SPEABS: Relationship between...GOLDBERQ) . , . . . . . . . . “The Crystalline State: An Introduction” by PETEB GAY (Reviewed by PAUL...greyweokes from Wyoming end from the Fig Tree Group, South Africa . . . . . . . . . . . . . . C. E. FOLSO~E, J...in the Allende meteorite. . C. E. REES: A steady-state model for sulphur isotope fractionation in bacterial...&opo ratios from veins in some Archeon cratone of Africa . . . . . . . . . . . . Q. F. J&azoa: V&ability
	*(1998) Extended Abstracts - 7th International Kimberlite Conference Cape Town* .**	Book
	responsibility for authors’ errors and omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE...Survey of South Africa) SouthemEra Resources Ltd SOCIETY SPONSORS Geological Society of South Africa (GSSA)...a Phanerozoic subduction regime in eastern New South Wales, Australia. Mantle Dynamics beneath Mongolia:...growth of Archean cratons: a case study from west Africa. The vertical distribution of indicator minerals...diamond. 61 Cr-poor Megacrysts from the Frank Smith Mine and the source regions of transitional kimberlites
	*(1983) Carbonates Mineralogy and Geochemistry. Reviews in Mineralogy* Vol. 11. Mineralogical Society of America**	Report (issue)
	Austin, Texas 78712 Dept. of Earth & Space Sciences State University of New York Stony Brook, New York 11794...Geological Sciences Virginia Polytechnic Institute State University Blacksburg, Virginia 24061 JULIAN SPEER...of Geological Sciences Polytechnic Institute & State University Blacksburg, Virginia 24061 MINERALOGICAL...properties Solid solution properties Estimation of free energy of mixing from high-temperature data Estimation...TRANSFORMATIONS The ca1cite-to-aragonite IN THE SOLID STATE The transformation under conditions of aragonite
	*Kornprobst, J. - Ed.* (1984) Kimberlites - II: The Mantle and Crust - Mantle Relationships - Developments in Petrology No. 11B. Elsevier. doi:10.1016/c2013-0-11841-7**	Book
	80523, U . S . A . : Resources, (III.7). Colorado State U n i v e r s i t y , Fort BARRON L . M . - G...e p a r t m e n t of Earth Resources, Colorado State U n i v e r s i t y , C o l l i n s , C o l o r...a r t m e n t of Geosciences, The Pennsylvania State U n i v e r s i t y P a r k , P e n n s y l v a...a 85287, U . S . A . : ( I I . 2 ) . Arizona State James Virginia Museum, 6-8 U n i v e r s i...Department o f E a r t h R e s o u r c e s , Colorado State U n i v e r s i t y , C o l l i n s , C o l o r

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Plagioclase from Rovic Mine, Boshof, Tokologo Local Municipality, Lejweleputswa District Municipality, Free State, South Africa

Plagioclase from
Rovic Mine, Boshof, Tokologo Local Municipality, Lejweleputswa District Municipality, Free State, South Africa