interpose
发表于 2025-3-30 11:28:29
Crystal Identification and Optical Principles,e treatment is practical rather than theoretical. Crystal optics continues to be a developing branch of physics, and has many ramifications beyond determinative work. The nature of light and its behavior have formed a central part of physics since its earliest days, from Snell in 1621 through such c
场所
发表于 2025-3-30 12:54:46
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牙齿
发表于 2025-3-30 19:16:09
The Immersion Method,ion of refractive index usually suffices for the identification of isotropic crystals. Refractive index determinations are also fundamental in identification of anisotropic crystals, and the techniques of this chapter are applicable to these as well. Anisotropic crystals, however, have either two or
Endemic
发表于 2025-3-30 21:25:56
Uniaxial Crystal Optics, uniaxial grain and to relate the optical directions to the crystallo-graphic directions. The uniaxial indicatrix, a device that summarizes the values of the refractive indices and the orientation of the associated vibration directions for all directions in a uniaxial crystal, is described in this c
河流
发表于 2025-3-31 02:06:58
Identification of Uniaxial Crystals,in identification in immersion mounts are those related to refractive index, optic sign, and color. In thin section, the most useful optical properties are relief, birefringence, and optic sign. Crystallographic properties that are most useful include those related to crystal habit, cleavage, and tw
Cardiac-Output
发表于 2025-3-31 06:05:10
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Fierce
发表于 2025-3-31 11:10:09
Identification of Biaxial Crystals,n the nature of the tables to be used. With many of these, knowledge of the optic sign and the three refractive indices is of prime consideration, but while these properties are being measured, one often gains knowledge of other useful properties such as birefringence, pleochroism and absorption, di
预感
发表于 2025-3-31 15:46:53
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蒙太奇
发表于 2025-3-31 18:01:16
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