Schoep, A. (1943) Mineralogische Aanteekeningen. I. Chemische samenstelling van toermalijn, epidoot en calciet uit Quenast. II. Pyrietkristallen uit het porphyriet van Quenast. Mededeelingen van de Koninklijke Vlaamsche Akademie voor Wetenschappen, Letteren en Schoone Kunsten van België, Klasse der Wetenschappen, V(3), 22 pages.

Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique (2nd ed.) Muséum des Sciences Naturelles, Bruxelles.

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	*(2019) July - August 2019. The Mineralogical Record* Vol. 50 (4) The Mineralogical Record, Inc.**	Journal (issue)
	by J. Grandjean Faden quartz from Bierghes, Brabant, Belgium ...................................... 441...collectible species. Interesting microcrystals of pyrite, quartz and marcasite have been recovered as well...Phantom fluorite Figures 27 and 28 Phantom fluorite Pyrite Figure 62 and 64 Exceptional phantom fluorite “Pineapple”...restricted, as in many other active stone aggregate quarries. County Road 178 borders the north side of the...in various colors, lusters and crystal habits. Pyrite, marcasite and quartz, although scattered throughout
	*Klemm, Rosemarie, Klemm, Dietrich (2013) Gold and Gold Mining in Ancient Egypt and Nubia. Springer Berlin Heidelberg. doi:10.1007/978-3-642-22508-6*	Book
	chalcopyrite and chalcocite next to galena, sphalerite and pyrite), which due to surface alteration processes had...the wadis under low sunlight. Associated to the quarries hereafter referred to as wadiworkings are heaps...the tool marks, which in analogy to the stone quarries of this period display more elongated shapes compared...Eastern Desert visibly on the well-evidenced stone quarries at Mons Claudius, Mons Porphyrites, Wadi Semna...al. 2008). Even along the routes to the stone quarries though, gold extraction was discontinued at several
	*Flawn, Peter T. (1966) Mineral Resources. Rand McNally & Co., Chicago, IL.*	Book
	the eastern desert of Egypt showing mines and quarries (after Murray, 81 fifth 1925) Fire-setting...very large and valuable deposits) are mined in quarries or open pits. The method involves stripping of...processing mineral material from a number of mines or quarries. The processing operations are commonly referred...Hydrothermal deposits Gold and silver associations Pyrite and copper associations Lead-silver-zinc associations...Massive. Bisbee copper. Kirkland Lake gold. “Porphyry” coppers. B. Lode fissure. C. Disseminated.
	Singhal, Raj K., Mehrotra, Anil K., Hadjigeorgiou, John, Poulin, Richard - Eds. (1995) Mine Planning and Equipment Selection 1995 - Proceedings of the Fourth International Symposium on Mine Planning and Equipment Selection/Calgary/Canada/31 October-3 November 1995. A. A. Balkema.	Book
	rational approach to the design of underground marble quarries 19 ‘INFRA’ — Computer-aided planning of mine...dimensional modeling in planning ornamental stone quarries J.C. Koppe, A.C. Zingano & J.F-C.L.Costa Ie ...production by splitting and cutting methods in Italian quarries R. Mancini, M.Cardu & M. Fornaro Layout and equipment...California, Mexico eo) Exploitation planning in slate quarries by merging the recovery and quality indices 205...Barlow Equipment selection in the Iranian marble quarries (dimension-stone industry): Procedures and problems
	*(1861) The Geologist. The "Geologist" Office*	Journal (volume)
	composition. Arragonite changed into caleite, and pyrite changed into marcasite are examples. At first sight...a kernel of this same felspar. Fluor envelopes pyrite concentrically. Symmetrical relations may again...and argillaceous limestones, with clay-stones, porphyry-tuffs, and porphyries form the mass of the Upper...be iiubieed to hjok beyond their own dear dusty quarries at the social scenes and antiquarian relics that...of Mines it appears also to be a rare shell in Belgium. Bli.? nana and Wi. semisulcata are by far too
	*(1892) Mining and Scientific Press* Vol. 64. Mining and Scientific Press**	Journal (volume)
	other fourth. Mr. Iron- 330 feet; face in hard porphyry. prietors, this week and gave good returns. Kentuck...coal mine is now down to a depth in a mixture of porphyry and quartz giving low shaft isisomething over... as the the week, and is out 46 feet; face in porphyry and 300 feet in the hill, both of which are in...presence claim have top is in a mixture of clay and porphyry. lead of great value. Thos. Lane Jr., and Geo...will be the means The face is in a mixture of porphyry and quartz givJones Hill.— Cor. Georgetown Gazette

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Pyrite from Porphyry quarries, Quenast, Rebecq, Walloon Brabant, Wallonia, Belgium

Pyrite from
Porphyry quarries, Quenast, Rebecq, Walloon Brabant, Wallonia, Belgium