# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    Crystran Ltd.
    <a href="https://issuu.com/crystran/docs/handbook_2023_website">
    The Crystran handbook of infra-red and ultra-violet optical materials (5th edition, 2023)
    </a><br>
    See also
    <a href="https://www.crystran.com/optical-materials/crystal-quartz-sio2">
    Crystran Crystal Quartz SiO<sub>2</sub> online data sheet
    </a>
COMMENTS: |
    Optically, Crystalline Quartz is used extensively as a wave retardation medium. The birefringent properties of Quartz are of use in quarter-wave plates and in polarisers. Quartz should not be processed or used at temperatures greater than 490 °C. Crystalline quartz is also used for electronic filters and resonators. However, Crystran Ltd. does not deal in material for this application. Quartz is mined naturally, but more commonly produced synthetically in large, long-faceted crystals. Quartz is positive birefringent. Be careful not to confuse terminology in this material, as "Fused Quartz" is often used to denote the glassy non-crystalline form better known as Silica. Normal Quartz is Alpha Quartz and normally RH rotating. LH rotating is available on special order. See our guide on distinguishing the types.At temperatures >490°C, Crystal Quartz starts to revert to glassy state, a process which is complete by 530°C. At this time, as annealling is unlikely, fracture of component is probable.<br>
    REFERENCES:<br>
    (1)J.V.Atansoff and P.J.Hart, Phys. Rev. Vol.59, pp 85-96 1941<br>
    (2)A.W.Lawson, Phys. Rev. Vol 59, pp.838-839, 1941<br>
    (3) F.J.Micheli, Ann.Physik 4:7 (1902)<br>
    (4) Toyoda & Yabe J. Phys. D: Appl. Phys.,1 6 (1983)<br>
    <br>
    Optical data are for ordinary ray (o).
CONDITIONS:
    direction: o
PROPERTIES:
    density:
      - value: 2649
    thermal_dispersion:
      - type: constant
        wavelength: 0.633
        direction: para
        value: -5.5e-06
      - type: constant
        wavelength: 0.633
        direction: perp
        value: -6.5e-06
    thermal_expansion:
      - direction: para
        temperature: 323
        value: 7.1e-06
      - direction: perp
        temperature: 323
        value: 13.2e-06
    hardness:
      - type: Knoop
        indenter_mass: 0.5
        value: 7.27e9
    melting_point:
      - value: 1983
    thermal_conductivity:
      - temperature: 323
        direction: para
        value: 10.7
      - temperature: 323
        direction: perp
        value: 6.2
    youngs_modulus:
      - direction: para
        value: 97.2e9
      - direction: perp
        value: 76.5e9
    solubility:
      - value: 0.017
DATA:
  - type: tabulated n
    data: |
        0.193 1.661
        0.213 1.632
        0.222 1.622
        0.226 1.619
        0.248 1.602
        0.257 1.596
        0.280 1.585
        0.308 1.576
        0.325 1.571
        0.351 1.565
        0.400 1.558
        0.458 1.552
        0.488 1.550
        0.515 1.548
        0.532 1.547
        0.590 1.544
        0.633 1.543
        0.670 1.541
        0.694 1.541
        0.755 1.539
        0.780 1.539
        0.800 1.538
        0.820 1.538
        0.860 1.537
        0.980 1.535
        1.064 1.534
        1.320 1.531
        1.550 1.528
        2.010 1.521
  - type: tabulated k
    data: |
        0.1900 2.38E-07
        0.1902 2.19E-07
        0.1904 2.16E-07
        0.1906 2.13E-07
        0.1908 2.12E-07
        0.1910 2.29E-07
        0.1912 2.43E-07
        0.1914 2.25E-07
        0.1916 2.37E-07
        0.1918 2.63E-07
        0.1920 2.36E-07
        0.1922 2.17E-07
        0.1924 2.59E-07
        0.1926 2.40E-07
        0.1928 2.33E-07
        0.1930 2.36E-07
        0.1932 2.25E-07
        0.1934 2.51E-07
        0.1936 2.58E-07
        0.1938 2.48E-07
        0.1940 2.44E-07
        0.1942 2.44E-07
        0.1944 2.43E-07
        0.1946 2.42E-07
        0.1948 2.29E-07
        0.1950 2.14E-07
        0.1952 2.20E-07
        0.1954 2.36E-07
        0.1956 2.19E-07
        0.1958 2.21E-07
        0.1960 2.30E-07
        0.1962 2.31E-07
        0.1964 2.32E-07
        0.1966 2.36E-07
        0.1968 2.28E-07
        0.1970 2.06E-07
        0.1972 2.11E-07
        0.1974 2.29E-07
        0.1976 2.31E-07
        0.1978 2.37E-07
        0.1980 2.17E-07
        0.1982 2.14E-07
        0.1984 2.15E-07
        0.1986 2.20E-07
        0.1988 2.14E-07
        0.1990 2.17E-07
        0.1992 2.17E-07
        0.1994 2.11E-07
        0.1996 2.15E-07
        0.1998 2.08E-07
        0.2000 2.10E-07
        0.2002 2.10E-07
        0.2004 2.07E-07
        0.2006 2.15E-07
        0.2008 2.04E-07
        0.2010 1.93E-07
        0.2012 1.97E-07
        0.2014 2.11E-07
        0.2016 2.02E-07
        0.2018 1.91E-07
        0.2020 1.88E-07
        0.2022 1.86E-07
        0.2024 1.97E-07
        0.2026 2.02E-07
        0.2028 1.88E-07
        0.2030 1.74E-07
        0.2032 1.69E-07
        0.2034 1.75E-07
        0.2036 1.84E-07
        0.2038 1.79E-07
        0.2040 1.76E-07
        0.2042 1.80E-07
        0.2044 1.77E-07
        0.2046 1.75E-07
        0.2048 1.81E-07
        0.2050 1.75E-07
        0.2052 1.63E-07
        0.2054 1.71E-07
        0.2056 1.73E-07
        0.2058 1.70E-07
        0.2060 1.75E-07
        0.2062 1.78E-07
        0.2064 1.69E-07
        0.2066 1.69E-07
        0.2068 1.81E-07
        0.2070 1.68E-07
        0.2072 1.66E-07
        0.2074 1.81E-07
        0.2076 1.77E-07
        0.2078 1.71E-07
        0.2080 1.70E-07
        0.2082 1.70E-07
        0.2084 1.69E-07
        0.2086 1.68E-07
        0.2088 1.67E-07
        0.2090 1.68E-07
        0.2092 1.71E-07
        0.2094 1.65E-07
        0.2096 1.67E-07
        0.2098 1.71E-07
        0.2100 1.64E-07
        0.2102 1.60E-07
        0.2104 1.59E-07
        0.2106 1.67E-07
        0.2108 1.65E-07
        0.2110 1.70E-07
        0.2112 1.69E-07
        0.2114 1.57E-07
        0.2116 1.66E-07
        0.2118 1.73E-07
        0.2120 1.73E-07
        0.2122 1.71E-07
        0.2124 1.67E-07
        0.2126 1.65E-07
        0.2128 1.73E-07
        0.2130 1.71E-07
        0.2132 1.69E-07
        0.2134 1.67E-07
        0.2136 1.60E-07
        0.2138 1.60E-07
        0.2140 1.60E-07
        0.2142 1.62E-07
        0.2144 1.71E-07
        0.2146 1.71E-07
        0.2148 1.70E-07
        0.2150 1.74E-07
        0.2152 1.74E-07
        0.2154 1.71E-07
        0.2156 1.71E-07
        0.2158 1.75E-07
        0.2160 1.73E-07
        0.2162 1.67E-07
        0.2164 1.66E-07
        0.2166 1.66E-07
        0.2168 1.66E-07
        0.2170 1.68E-07
        0.2172 1.77E-07
        0.2174 1.78E-07
        0.2176 1.71E-07
        0.2178 1.70E-07
        0.2180 1.71E-07
        0.2182 1.71E-07
        0.2184 1.72E-07
        0.2186 1.72E-07
        0.2188 1.73E-07
        0.2190 1.73E-07
        0.2192 1.73E-07
        0.2194 1.74E-07
        0.2196 1.74E-07
        0.2198 1.74E-07
        0.2200 1.75E-07
        1.27 5.11E-08
        1.28 2.25E-07
        1.29 3.68E-07
        1.30 4.51E-07
        1.31 5.11E-07
        1.32 5.86E-07
        1.33 6.80E-07
        1.34 7.54E-07
        1.35 7.89E-07
        1.36 7.93E-07
        1.37 7.84E-07
        1.38 7.73E-07
        1.39 7.70E-07
        1.40 7.84E-07
        1.41 8.25E-07
        1.42 9.16E-07
        1.43 1.00E-06
        1.44 1.04E-06
        1.45 1.06E-06
        1.46 1.07E-06
        1.47 1.07E-06
        1.48 1.06E-06
        1.49 1.14E-06
        1.50 1.18E-06
        1.51 1.20E-06
        1.52 1.15E-06
        1.53 1.07E-06
        1.54 1.05E-06
        1.55 1.13E-06
        1.56 1.20E-06
        1.57 1.19E-06
        1.58 1.13E-06
        1.59 1.09E-06
        1.60 1.06E-06
        1.61 1.06E-06
        1.62 1.06E-06
        1.63 1.07E-06
        1.64 1.09E-06
        1.65 1.11E-06
        1.66 1.13E-06
        1.67 1.15E-06
        1.68 1.18E-06
        1.69 1.20E-06
        1.70 1.23E-06
        1.71 1.25E-06
        1.72 1.28E-06
        1.73 1.30E-06
        1.74 1.32E-06
        1.75 1.34E-06
        1.76 1.36E-06
        1.77 1.39E-06
        1.78 1.41E-06
        1.79 1.43E-06
        1.80 1.45E-06
        1.81 1.49E-06
        1.82 1.55E-06
        1.83 1.60E-06
        1.84 1.66E-06
        1.85 1.72E-06
        1.86 1.77E-06
        1.87 1.81E-06
        1.88 1.83E-06
        1.89 1.84E-06
        1.90 1.84E-06
        1.91 1.84E-06
        1.92 1.84E-06
        1.93 1.85E-06
        1.94 1.86E-06
        1.95 1.87E-06
        1.96 1.88E-06
        1.97 1.89E-06
        1.98 1.91E-06
        1.99 1.92E-06
        2.00 1.94E-06
        2.01 1.96E-06
        2.02 1.98E-06
        2.03 2.00E-06
        2.04 2.03E-06
        2.05 2.06E-06
        2.06 2.09E-06
        2.07 2.14E-06
        2.08 2.19E-06
        2.09 2.23E-06
        2.10 2.20E-06
        2.11 2.15E-06
        2.12 2.10E-06
        2.13 2.07E-06
        2.14 2.08E-06
        2.15 2.12E-06
        2.16 2.18E-06
        2.17 2.25E-06
        2.18 2.33E-06
        2.19 2.38E-06
        2.20 2.42E-06
        2.21 2.44E-06
        2.22 2.45E-06
        2.23 2.46E-06
        2.24 2.47E-06
        2.25 2.47E-06
        2.26 2.48E-06
        2.27 2.48E-06
        2.28 2.49E-06
        2.29 2.50E-06
        2.30 2.52E-06
        2.31 2.53E-06
        2.32 2.55E-06
        2.33 2.56E-06
        2.34 2.58E-06
        2.35 2.59E-06
        2.36 2.60E-06
        2.37 2.62E-06
        2.38 2.63E-06
        2.39 2.65E-06
        2.40 2.66E-06
        2.41 2.68E-06
        2.42 2.69E-06
        2.43 2.71E-06
        2.44 2.72E-06
        2.45 2.74E-06
        2.46 2.75E-06
        2.47 2.77E-06
        2.48 2.78E-06
        2.49 2.80E-06
        2.50 2.81E-06
        2.51 2.83E-06
        2.52 2.85E-06
        2.53 2.86E-06
        2.54 2.88E-06
        2.55 2.89E-06
        2.56 2.91E-06
        2.57 2.93E-06
        2.58 2.95E-06
        2.59 2.97E-06
        2.60 3.00E-06
        2.61 3.01E-06
        2.62 3.02E-06
        2.63 3.02E-06
        2.64 3.03E-06
        2.65 3.03E-06
        2.66 3.05E-06
        2.67 3.18E-06
        2.68 3.57E-06
        2.69 4.54E-06
        2.70 4.59E-06
        2.71 3.93E-06
        2.72 3.29E-06
        2.73 3.25E-06
        2.74 3.41E-06
        2.75 3.78E-06
        2.76 4.79E-06
        2.77 4.48E-06
        2.78 4.77E-06
        2.79 4.58E-06
        2.80 3.89E-06
        2.81 3.88E-06
        2.82 3.97E-06
        2.83 4.07E-06
        2.84 4.20E-06
        2.85 4.37E-06
        2.86 4.60E-06
        2.87 4.88E-06
        2.88 5.21E-06
        2.89 5.62E-06
        2.90 6.10E-06
        2.91 6.61E-06
        2.92 7.04E-06
        2.93 7.31E-06
        2.94 7.41E-06
        2.95 7.43E-06
        2.96 7.44E-06
        2.97 7.49E-06
        2.98 7.64E-06
        2.99 7.98E-06
        3.00 8.47E-06
        3.01 9.13E-06
        3.02 1.00E-05
        3.03 1.11E-05
        3.04 1.08E-05
        3.05 9.27E-06
        3.06 7.33E-06
        3.07 6.29E-06
        3.08 5.75E-06
        3.09 5.94E-06
        3.10 6.84E-06
        3.11 8.39E-06
        3.12 1.05E-05
        3.13 1.10E-05
        3.14 9.60E-06
        3.15 7.81E-06
        3.16 6.75E-06
        3.17 6.54E-06
        3.18 6.49E-06
        3.19 6.51E-06
        3.20 6.50E-06
        3.21 6.50E-06
        3.22 6.52E-06
        3.23 6.59E-06
        3.24 6.75E-06
        3.25 6.95E-06
        3.26 7.15E-06
        3.27 7.29E-06
        3.28 7.33E-06
        3.29 7.28E-06
        3.30 7.15E-06
        3.31 6.97E-06
        3.32 6.83E-06
        3.33 6.74E-06
        3.34 6.73E-06
        3.35 6.91E-06
        3.36 7.34E-06
        3.37 7.80E-06
        3.38 8.14E-06
        3.39 8.46E-06
        3.40 8.82E-06
        3.41 9.15E-06
        3.42 9.29E-06
        3.43 9.08E-06
        3.44 8.84E-06
        3.45 9.05E-06
        3.46 9.53E-06
        3.47 1.02E-05
        3.48 1.10E-05
        3.49 1.21E-05
        3.50 1.34E-05
        3.51 1.46E-05
        3.52 1.59E-05
        3.53 1.74E-05
        3.54 1.90E-05
        3.55 2.07E-05
        3.56 2.24E-05
        3.57 2.41E-05
        3.58 2.58E-05
        3.59 2.73E-05
        3.60 2.84E-05
        3.61 2.92E-05
        3.62 2.98E-05
        3.63 3.04E-05
        3.64 3.11E-05
        3.65 3.24E-05
        3.66 3.44E-05
        3.67 3.72E-05
        3.68 4.18E-05
        3.69 4.70E-05
        3.70 5.33E-05
        3.71 5.95E-05
        3.72 6.45E-05
        3.73 6.82E-05
        3.74 6.98E-05
        3.75 6.95E-05
        3.76 6.74E-05
        3.77 6.48E-05
        3.78 6.20E-05
        3.79 5.99E-05
        3.80 5.89E-05
        3.81 5.96E-05
        3.82 6.13E-05
        3.83 6.35E-05
        3.84 6.56E-05
        3.85 6.70E-05
        3.86 6.72E-05
        3.87 6.60E-05
        3.88 6.35E-05
        3.89 6.06E-05
        3.90 5.86E-05
        3.91 5.72E-05
        3.92 5.74E-05
        3.93 5.84E-05
        3.94 6.10E-05
        3.95 6.46E-05
        3.96 6.94E-05
        3.97 7.37E-05
        3.98 7.71E-05
        3.99 8.07E-05
        4.00 8.31E-05
        4.01 8.41E-05
        4.02 8.42E-05
        4.03 8.38E-05
        4.04 8.30E-05
        4.05 8.27E-05
        4.06 8.39E-05
        4.07 8.68E-05
        4.08 9.08E-05
        4.09 9.73E-05
        4.10 1.05E-04
        4.11 1.14E-04
        4.12 1.23E-04
        4.13 1.33E-04
        4.14 1.41E-04
        4.15 1.49E-04
        4.16 1.59E-04
        4.17 1.69E-04
        4.18 1.82E-04
        4.19 1.94E-04
        4.20 1.99E-04
        4.21 2.02E-04
        4.22 2.05E-04
        4.23 2.07E-04
        4.24 2.09E-04
        4.25 2.10E-04
        4.26 2.11E-04
        4.27 2.10E-04
        4.28 2.08E-04
        4.29 2.08E-04
        4.30 2.06E-04
        4.31 2.01E-04
        4.32 1.91E-04
        4.33 1.90E-04
        4.34 1.95E-04
        4.35 2.10E-04
        4.36 2.41E-04
        4.37 2.68E-04
        4.38 3.12E-04
        4.39 3.52E-04
        4.40 3.98E-04
        4.41 4.39E-04
        4.42 4.75E-04
        4.43 5.09E-04
        4.44 5.44E-04
        4.45 5.94E-04
        4.46 6.56E-04
        4.47 6.89E-04
        4.48 6.54E-04
        4.49 6.23E-04
        4.50 5.77E-04
        4.51 4.83E-04
        4.52 3.91E-04
        4.53 3.22E-04
        4.54 2.68E-04
        4.55 2.28E-04
        4.56 2.08E-04
        4.57 1.97E-04
        4.58 1.92E-04
        4.59 1.94E-04
        4.60 1.98E-04
        4.61 2.05E-04
        4.62 2.20E-04
        4.63 2.41E-04
        4.64 2.70E-04
        4.65 3.21E-04
        4.66 3.88E-04
        4.67 4.82E-04
        4.68 5.54E-04
        4.69 5.35E-04
        4.70 4.28E-04
        4.71 3.76E-04
        4.72 3.40E-04
        4.73 3.35E-04
        4.74 3.37E-04
        4.75 3.43E-04
        4.76 3.58E-04
        4.77 3.75E-04
        4.78 3.95E-04
        4.79 4.19E-04
        4.80 4.47E-04
        4.81 4.78E-04
        4.82 5.15E-04
        4.83 5.61E-04
        4.84 6.13E-04
        4.85 6.73E-04
        4.86 7.54E-04
        4.87 8.57E-04
        4.88 9.69E-04
        4.89 1.17E-03
        4.90 1.50E-03
        4.96 2.26E-03
        4.97 1.69E-03
        4.98 1.56E-03
        4.99 1.49E-03
        5.00 1.44E-03