театральная деятельность в старшей группе для детей
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театральная деятельность в старшей группе для детей, Actinolite - Clark Science Center, 1239-1254 - Raman Spectroscopy, ASBESTOS (bulk) by PLM 9002, JENNIFER R. V AND ANN G. WYLIE - GeologyScience.ru, 5 Amphiboles – Optical Mineralogy, Actinolite Tremolite, Crystal, Schist, Asbestos, Uses, MSDS, Actinolite - Gems & Minerals.
h7PsS{b2PYG$CqC#\j>u gS]cNW?w!mlX]iᶙj6¤3m 0n&!])+fE*ąXp2N `:_U z|+PQID4z3c&O[\ \vpg>huwG_[qVm}w4 kVnĝi;֒m{ɢ4+QUJ,h)ȽG x/ĎTE\5)-+P+]my Up{GǸ9YRQ dl:JzOϢT'drOon-sG. @낡: 1a md]e0\px)t9 woIOOis=㛻7/q8aҕ˖qWFRgaHQA@=1*`.DCd.afYlF, Thin section photograph of an actinolite crystal in an orientation where only one cleavage is visible. Click on the image to see a larger version with ppl/xpl rollover. (Sample RT-2a), Extinction angle is thought to decrease with increasing ferro-actinolite content (Phillips and Griffen 1981; Nesse 1991; Deer et al. 1997), although Winchell (1963) gives calculated end-member extinction angles of 16.2 for ° tremolite and 32.1 for ferro-actinolite..
If anisotropic fibers are found, rotate the stage to determine the angle of extinction. Except for tremolite-actinolite asbestos which has oblique extinction at 10-20E, the other forms of asbestos exhibit parallel extinction (Table 1)., monoclinic optical properties. “Byssolitic” samples of the actinolite series, a fibrous non-asbesti-form habit, contain fibers that do not go to extinction in sections on or near (010), probably., In longitudinal sections, the maximum extinction angle varies from about 12° to 30° depending on composition; in cross sections, extinction is symmetrical to the two cleavages., Refractive index is between 1.606 and 1.641. Birefringence ranges within 0.022 to 0.027 and maximum average birefringence is 0.023. This mineral has a low extinction angle., Common in thin section, actinolite is used to teach optical mineralogy, including pleochroism, cleavage patterns, and extinction angles. Its structural complexity makes it a frequent subject of crystallographic and spectroscopic analysis., Typical Color Habit(s) Occurrence Alteration / Decomposition Other useful features n Cleavage Birefringence/Max. Interference Colors Extinction / Ext. Angle Twinning Elongation Optic Sign 2V Dispersion Density. LIGHT NORMAL DENSE Igneous Metamorphic Low-T hydrothermal High-T hydrothermal Sedimentary..