Rocce, minerali e miniere delle isole dell'Arcipelago Toscano. (1967) Transmission electron microscope study of Brazil twins and dislocations experimentally produced in natural quartz. in: Heaney, P.J., Gibbs, G.V., editors. (1829) Über die herzförmig genannten Zwillingskrystalle von Kalkspath, und gewisse analoge von Quarz. ), 224 pp. Physics and Chemistry of Minerals: 10: 149-165. Cuarzo y otros minerales de la sílice. Seconda parte. Journal of Geophysical Research 99, 11787-11794. This is caused by the deposition of thin continuous layers of, for example, clay minerals, on the crystal during growth. A brief treatment of quartz follows. American Mineralogist: 30: 205-213. Mineralogical Society of America, 309-329. (1987) High-pressure Raman study of the vibrational modes in AlPO4 and SiO2 (α-quartz). Vol. American Mineralogist: 32: 583-588. Neues Jahrbuch für Mineralogie, Abhandlungen: 160: 181-192. Quartz crystal is one of several minerals which are piezoelectric, meaning that when pressure is applied to quartz, a positive electrical charge is created at one end of the crystal and a negative electrical charge is created at the other. Co... A variety of Agate or Jasper impregnated with Iron Hydrate. Approved, 'Grandfathered' (first described prior to 1959), Image shows birefringence interference colour range (at 30µm thickness). (TL) - Type Locality for a valid mineral species. Bombicci, L. (1874) Descrizione della mineralogia generale della provincia di Bologna. Chemical Geology: 103: 85-102. Wolfe, C. W. and Vilks, I. (1952) Striations on prism faces of quartz. Mineralogical Magazine: 67: 1-13. Series A, Mathematical and Physical Sciences: 231: 404-414. Bachheimer, J.-P. (2000) Comparative NIR and IR examination of natural, synthetic, and irradiated synthetic quartz. An opaque to translucent, blue variety of quartz, owing its colour to inclusions, commonly of fibrous. in: Götze, J., Möckel, R., editors. (1983) Growth defects in a Quartz Druse. A variety of chalcedony colored deep green by Cr compounds. Zeitschrift für Kristallographie: 163: 181-186. Zyndel, F. (1913) Über Quarzzwillinge mit nichtparallelen Hauptaxen. Gems & Gemology: 53: 68-81. (1958) Determination of the absolute configuration of α-quartz. The sparkling stones that triggered a ‘diamond’ rush in Nagaland’s Mon district in the last few days could be quartz, a preliminary finding by a team of geologists has revealed. Quartz: Deposits, mineralogy and analytics. Cuarzo y otros minerales de la sílice. Hazen, R.M., Finger, L.W., Hemley, R.J., Mao, H.K. Literally "window quartz". Blue-gray, brown and yellow colors. Springer Verlag, 307-329. Acta Crystallogr. American Mineralogist: 12: 383-395. 399 págs. A name in common trade use for a pink/purple translucent to opaque variety of quartz, possibly containing inclusions of a lithium-rich mineral such as lepidolite - however it could equally be a misleading/incorrect name, and should be regarded a simply a ... A semi-transparent to opaque white-coloured variety of quartz. (1969) The system forsterite-diopside-silica with and without water at high pressures. Surv. Vol VIII.Cuarzo y otros minerales de la sílice. ; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254. Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. ISBN 978-0-939950-00-3 [booklet, abstract and free download on the MSA website: Skalwold, E.A., Bassett, W.A. Geochimica et Cosmochimica Acta: 54: 283-297. VIII. Robin, P.Y.F. by Thompson, W.B., et.al. American Mineralogist: 40: 1-9. Quartz: Deposits, mineralogy and analytics. Estudos Geológicos, 19(2), 172. 33: 41-50 Contributions to Mineralogy and Petrology: 18: 295-304. Quartz: Deposits, mineralogy and analytics. Richet, P., Bottinga, Y., Deniélou, L., Petitet, J.P., Téqui, C. (1982) Thermodynamic properties of quartz, cristobalite, and amorphous SiO2: drop calorimetry measurements between 1000 and 1800 K and a review from 0 to 2000 K. Geochimica et Cosmochimica Acta: 46: 2639-2658.

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