Adv. VIII. Drees, L.R., Wilding, L.P., Smeck, N.E., Senkayi, A.L. Bill Barrett Coll. A. Berluti collection; Henderson, William A., Jr, and Michael Haritos. The Mineralogical Record: 23(5): 428. 2. Quartz is divided into two groups; crystalline or visible crystals and cryptocrystalline or hidden crystals which, require a microscope. (2010) Fluid-rock interactions during formation of metamorphic quartz veins: a REE and stable isotope study from the Rhenish Massif, Germany. (1952) Striations on prism faces of quartz. In the same localities where the crystals have been found, veins of massive quartz outcrop. Judd, J.W. Specimens collected by Jeremy Zolan in Feb., 2006; Harold Moritz collection. It is also used to make frequency control devices and electronic filters that remove defined electromagnetic frequencies. Dapples, E.C. Elsevier Ltd. 2nd Edition, 1-64. Chalcedony with embedded fibers of amphibole minerals with varying degrees of alteration. Tomkeieff, S.I. Rusk, B. Shape-wise, rock quartz forms crystals in hexagonal prisms with sharp ends of six-sided points looking like little pyramids; however, some quartz embedded in rock has an irregular mass, with no definite shape. Mineralogical Society of America, 41-81. (1993) Thermoluminescence spectra of igneous quartz and hydrothermal vein quartz. ? (1888) On the development of a lamellar structure in quartz-crystals by mechanical means. (1987), Cinque Quarry, A Suburban Site in Connecticut Makes Collecting a Cinch. Lapis, 7, 7, 17-25; Stalder, H. A., Wagner, A., Graeser, S., and Stuker, P. (1998) Mineralienlexikon der Schweiz. (2015) Quartz: a bull’s eye on optical activity. American Mineralogist: 66: 596-600. Robinson, G.W., et al. : 85-96. How are they used? Mitteilungen des naturwissenschaftlichen Vereins für Steiermark 105, 21-24. (2008) A Catalogue of the Minerals of Tasmania. 36 pp. Nature: 155: 452. 45, 443-447. (1994) A thermodynamic assessment of silica phase diagram. Haus, R., Prinz, S., Priess, C. (2012) Assessment of high purity quartz resources. (1982) The investigation of defects in shock-metamorphosed quartz. (1967) Transmission electron microscope study of Brazil twins and dislocations experimentally produced in natural quartz. Carinthia II: 195./115. (1986) The subsolidus segregation of layer-parallel quartz-feldspar veins in greenschist to upper amphibolite facies metasediments. Mineralogical Record 28, No. Mineralogical Magazine: 25: 259-263. Chalcedony containing dendritic inclusions. Wright, A.F., Lehmann, M.S. Colourful, doubly-terminated quartz crystals that occur in the Permian Seven Rivers Formation along the Pecos River valley in southeastern New Mexico. Barker, C., Robinson, S.J. Quartz is one of the most common minerals in the Earth’s crust. in Minerals in Soil Environments, Editor S.B. (1975): Minerals of Washington, p.71, Min Record:20(5):390; Minerals of Washington, B. Cannon, 1975; Rocks and Minerals 66:6, p.469, Eric He's Collection; Ray Claude (1995) Mineral Sites of King County, Washington: 27, Minerals of Washington, Bart Cannon, 1975; Rocks and Minerals 66:6, p.469, Robièi (Alpe di Robièi; Lake Robièi area), Cavagnöö Glacier (Cavagnoli Glacier; Cavagnöö area; Cavagnoli area), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries). A variety of quartz colored red, brown, or yellow by inclusions of, A variety of chalcedony containing inclusions of goethite or limonite, producing an iridescent effect or "fire.". in: Explication Morale du Jeu de Cartes; Anecdote Curieuse et Interessante, (Bruxelles), 99-100. 510pp. (1959) Directional grinding hardness of quartz by peripheral grinding. Quartz: Deposits, mineralogy and analytics. Geschiebekunde aktuell: 24: 13-24. Ruppert, L.F. (1987) Applications of cathodoluminescence of quartz and feldspar to sedimentary petrology. Zeitschrift für Kristallographie: 163: 181-186. a Pseudo-basal Dislocations. Calvert, S.E. Weil, J.A. Periodico di Mineralogia, 73, Special Issue 3, 171-195. edition: 1573. (1855) Mémoire sur la cristallisation et la structure intérieure du quartz. Journal of Applied Crystallography: 16: 39-403. Quartz is the most common single rock-forming mineral, so it is found almost everywhere in a variety of rocks or sand. Bates, J.B., Quist, A.S. (1972) Polarized Raman spectra of β-quartz. Seconda parte. (1984) A review of electron spin resonance and its applications to the study of paramagnetic defects in crystalline quartz. Journal of Metamorphic Geology: 13: 299-314.; Horowitz, Irving L. (2003): The Remarkable Quartz Crystals of West Willington, Tolland County, Connecticut. Bettermann, P., Liebau, F. (1975) The transformation of amorphous silica to crystalline silica under hydrothermal conditions. Bambauer, H.U. A variety of chalcedony with contrasting colored, plume-like structures within the material. Approved, 'Grandfathered' (first described prior to 1959), Image shows birefringence interference colour range (at 30µm thickness). Very special multicolor black-blue-brown-white local variety of. Compte Rendu 1er Réunion de l'Institut d'Optique: 2-11. Contributions to Mineralogy and Petrology: 53: 25-36. (1995): Deep Crustal Growth of Quartz, Kyanite and Garnet into Large-Aperature, fluid-filled fractures, northeastern Connecticut, USA. in: Ireland, H.A. Favreau G., Legris J-R., Dardillac M. (1996), La Verrière (Rhône): Histoire et Minéralogie, Le Cahier des Micromonteurs, n°3, pp:3-28, Alain Steinmetz and Thierry Brunsperger Collection, Rostan P. (2002), Cristaux de quartz d'habitus fenestré dans les Alpes du Sud, Le Règne Minéral, n°45, pp: 5-17, Szakáll & Jánosi: Minerals of Hungary, 1995. (1963) Cleavage in quartz. The Canadian Mineralogist: 38: 233-244. Dove, P.M., Rimstidt, J.D. American Mineralogist: 72: 170-172. [World of Stones 2:93]; Pavel M. Kartashov data. VIII. Bernhardt, H.-J., Alter, U. Nature, Scientific Reports: 5: 14545. doi: 10.1038/srep14545. For full treatment, see silica mineral. ; Calvo, M. (2016). (1983) Growth defects in a Quartz Druse. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Ramseyer, K., Baumann, J., Matter, A., Mullis, J. Scott, S.D., O'Connor, T.P. American Mineralogist: 16: 278-299. A local name for translucent wine and amethystine coloured chalcedony pebbles.