Usambara tourmaline. Recalculated to thickness 1 cm, E perp c 5555.55556, 0.18067 5571.03064, 0.18333 5586.59218, 0.21267 5602.2409, 0.22567 5617.97753, 0.26067 5633.80282, 0.27567 5649.71751, 0.282 5665.72238, 0.27767 5681.81818, 0.266 5698.0057, 0.232 5714.28571, 0.19533 5730.65903, 0.18067 5747.12644, 0.18067 5763.68876, 0.18067 5780.34682, 0.18067 5797.10145, 0.18067 5813.95349, 0.18833 5830.90379, 0.209 5847.95322, 0.233 5865.10264, 0.26267 5882.35294, 0.27067 5899.70501, 0.28367 5917.15976, 0.28467 5934.7181, 0.27533 5952.38095, 0.25233 5970.14925, 0.24 5988.02395, 0.21367 6006.00601, 0.18067 6024.09639, 0.18067 6042.29607, 0.18067 6060.60606, 0.18067 6079.02736, 0.20267 6097.56098, 0.22933 6116.20795, 0.25933 6134.96933, 0.271 6153.84615, 0.27833 6172.83951, 0.27067 6191.95046, 0.26433 6211.18012, 0.25167 6230.5296, 0.24533 6250, 0.21533 6269.59248, 0.19967 6289.30818, 0.18367 6309.14826, 0.18167 6329.11392, 0.19333 6349.20635, 0.223 6369.42675, 0.25067 6389.77636, 0.27867 6410.25641, 0.299 6430.86817, 0.29433 6451.6129, 0.285 6472.49191, 0.267 6493.50649, 0.255 6514.65798, 0.23667 6535.94771, 0.21667 6557.37705, 0.21633 6578.94737, 0.21733 6600.66007, 0.22567 6622.51656, 0.24367 6644.51827, 0.26333 6666.66667, 0.28533 6688.96321, 0.29533 6711.4094, 0.28767 6734.00673, 0.279 6756.75676, 0.261 6779.66102, 0.25567 6802.72109, 0.262 6825.93857, 0.271 6849.31507, 0.294 6872.85223, 0.31667 6896.55172, 0.33833 6920.41522, 0.35967 6944.44444, 0.36767 6968.64111, 0.36133 6993.00699, 0.343 7017.54386, 0.319 7042.25352, 0.298 7067.13781, 0.27867 7092.19858, 0.279 7117.43772, 0.28933 7142.85714, 0.284 7168.45878, 0.31167 7194.2446, 0.29533 7220.21661, 0.30167 7246.37681, 0.31733 7272.72727, 0.30233 7299.27007, 0.296 7326.00733, 0.28667 7352.94118, 0.29233 7380.0738, 0.30633 7407.40741, 0.29733 7434.94424, 0.295 7462.68657, 0.30167 7490.6367, 0.30967 7518.79699, 0.30567 7547.16981, 0.29933 7575.75758, 0.284 7604.56274, 0.29733 7633.58779, 0.31933 7662.83525, 0.33867 7692.30769, 0.34567 7722.00772, 0.34433 7751.93798, 0.35 7782.10117, 0.345 7812.5, 0.34133 7843.13725, 0.32533 7874.01575, 0.324 7905.13834, 0.35767 7936.50794, 0.37833 7968.12749, 0.34 8000, 0.325 8032.12851, 0.32833 8064.51613, 0.33033 8097.16599, 0.33 8130.0813, 0.33133 8163.26531, 0.33333 8196.72131, 0.34467 8230.45267, 0.351 8264.46281, 0.34933 8298.75519, 0.35167 8333.33333, 0.35867 8368.20084, 0.36267 8403.36134, 0.36133 8438.81857, 0.363 8474.57627, 0.37 8510.6383, 0.38033 8547.00855, 0.373 8583.69099, 0.37567 8620.68966, 0.381 8658.00866, 0.39733 8695.65217, 0.386 8733.62445, 0.39133 8771.92982, 0.40667 8810.57269, 0.41 8849.55752, 0.39667 8888.88889, 0.406 8928.57143, 0.41067 8968.60987, 0.40667 9009.00901, 0.40867 9049.77376, 0.414 9090.90909, 0.423 9132.42009, 0.411 9174.31193, 0.41633 9216.58986, 0.42567 9259.25926, 0.42333 9302.32558, 0.418 9345.79439, 0.42467 9389.67136, 0.417 9433.96226, 0.41333 9478.67299, 0.42367 9523.80952, 0.422 9569.37799, 0.41333 9615.38462, 0.418 9661.83575, 0.41267 9708.73786, 0.406 9756.09756, 0.413 9803.92157, 0.411 9852.21675, 0.403 9900.9901, 0.40767 9950.24876, 0.408 10000, 0.39833 10020.04008, 0.39045 10040.16064, 0.38045 10060.36217, 0.38545 10080.64516, 0.41045 10101.0101, 0.42295 10121.45749, 0.40045 10141.98783, 0.41045 10162.60163, 0.43295 10183.29939, 0.44795 10204.08163, 0.42045 10224.94888, 0.43545 10245.90164, 0.41545 10266.94045, 0.41045 10288.06584, 0.43545 10309.27835, 0.40795 10330.57851, 0.40045 10351.96687, 0.43295 10373.44398, 0.40295 10395.0104, 0.41545 10416.66667, 0.40795 10438.41336, 0.41795 10460.25105, 0.42545 10482.18029, 0.41545 10504.20168, 0.40545 10526.31579, 0.41045 10548.52321, 0.39045 10570.82452, 0.40545 10593.22034, 0.40795 10615.71125, 0.41545 10638.29787, 0.41045 10660.98081, 0.42295 10683.76068, 0.43545 10706.63812, 0.42045 10729.61373, 0.42045 10752.68817, 0.42045 10775.86207, 0.42545 10799.13607, 0.41295 10822.51082, 0.41545 10845.98698, 0.42795 10869.56522, 0.42295 10893.24619, 0.42295 10917.03057, 0.42545 10940.91904, 0.44545 10964.91228, 0.45795 10989.01099, 0.44795 11013.21586, 0.42545 11037.52759, 0.43545 11061.9469, 0.43045 11086.4745, 0.42795 11111.11111, 0.43295 11135.85746, 0.43545 11160.71429, 0.44295 11185.68233, 0.44795 11210.76233, 0.46795 11235.95506, 0.46795 11261.26126, 0.44795 11286.68172, 0.46295 11312.21719, 0.46795 11337.86848, 0.44795 11363.63636, 0.44795 11389.52164, 0.45795 11415.52511, 0.46795 11441.6476, 0.46795 11467.88991, 0.47295 11494.25287, 0.47295 11520.73733, 0.46795 11547.34411, 0.48545 11574.07407, 0.48295 11600.92807, 0.49045 11627.90698, 0.48545 11655.01166, 0.47545 11682.24299, 0.49545 11709.60187, 0.49795 11737.0892, 0.51795 11764.70588, 0.52545 11792.45283, 0.49795 11820.33097, 0.49795 11848.34123, 0.51795 11876.48456, 0.51795 11904.7619, 0.51045 11933.17422, 0.51545 11961.72249, 0.52295 11990.40767, 0.53045 12019.23077, 0.54295 12048.19277, 0.53295 12077.29469, 0.54045 12106.53753, 0.52295 12135.92233, 0.54295 12165.45012, 0.54795 12195.12195, 0.56295 12224.93888, 0.56045 12254.90196, 0.56795 12285.01229, 0.58795 12315.27094, 0.57795 12345.67901, 0.57045 12376.23762, 0.59795 12406.94789, 0.58045 12437.81095, 0.59795 12468.82793, 0.59545 12500, 0.61545 12531.32832, 0.59795 12562.81407, 0.62295 12594.45844, 0.63045 12626.26263, 0.62545 12658.22785, 0.62795 12690.35533, 0.64295 12722.64631, 0.65295 12755.10204, 0.67045 12787.72379, 0.67295 12820.51282, 0.67295 12853.47044, 0.69045 12886.59794, 0.67795 12919.89664, 0.69045 12953.36788, 0.69295 12987.01299, 0.72295 13020.83333, 0.72795 13054.83029, 0.73045 13089.00524, 0.74295 13123.35958, 0.74795 13157.89474, 0.75545 13192.61214, 0.77045 13227.51323, 0.79045 13262.59947, 0.80295 13297.87234, 0.81295 13333.33333, 0.81545 13368.98396, 0.84045 13404.82574, 0.86545 13440.86022, 0.89795 13477.08895, 0.91295 13513.51351, 0.91795 13550.1355, 0.92545 13586.95652, 0.98295 13623.9782, 1.00045 13661.20219, 1.02045 13698.63014, 1.02545 13736.26374, 1.0392 13774.10468, 1.1092 13812.1547, 1.1417 13850.41551, 1.1917 13888.88889, 1.2342 13927.5766, 1.2842 13966.48045, 1.3442 14005.60224, 1.4067 14044.94382, 1.4917 14084.50704, 1.5592 14124.29379, 1.6717 14164.30595, 1.7567 14204.54545, 1.8767 14245.01425, 1.9892 14285.71429, 2.1367 14326.64756, 2.3042 14367.81609, 2.4717 14409.2219, 2.6492 14450.86705, 2.8217 14492.75362, 3.0017 14534.88372, 3.2267 14577.25948, 3.4692 14619.88304, 3.6267 14662.7566, 3.6517 14705.88235, 3.6242 14749.26254, 3.6642 14792.89941, 3.8367 14836.79525, 4.0542 14880.95238, 4.2867 14925.37313, 4.4867 14970.05988, 4.7392 15015.01502, 4.9967 15060.24096, 5.2417 15105.74018, 5.5167 15151.51515, 5.8267 15197.56839, 6.1217 15243.90244, 6.4792 15290.51988, 6.8567 15337.42331, 7.2067 15384.61538, 7.5092 15432.09877, 7.8167 15479.87616, 8.0642 15527.95031, 8.3242 15576.32399, 8.6017 15625, 8.8192 15673.98119, 9.0642 15723.27044, 9.3842 15772.87066, 9.7192 15822.78481, 10.0117 15873.01587, 10.2617 15923.56688, 10.5292 15974.44089, 10.7892 16025.64103, 10.9817 16077.17042, 11.1992 16129.03226, 11.3742 16181.22977, 11.5417 16233.76623, 11.6317 16286.64495, 11.7367 16339.86928, 11.8367 16393.44262, 11.9017 16447.36842, 11.9592 16501.65017, 12.0017 16556.29139, 12.0417 16611.29568, 12.0667 16666.66667, 12.0517 16722.40803, 12.0592 16778.52349, 12.0317 16835.01684, 11.9842 16891.89189, 11.8792 16949.15254, 11.7817 17006.80272, 11.6542 17064.84642, 11.5442 17123.28767, 11.3592 17182.13058, 11.1792 17241.37931, 10.9942 17301.03806, 10.7967 17361.11111, 10.5517 17421.60279, 10.3017 17482.51748, 10.0592 17543.85965, 9.7917 17605.6338, 9.5392 17667.84452, 9.2442 17730.49645, 8.9692 17793.59431, 8.6667 17857.14286, 8.3667 17921.14695, 8.0942 17985.61151, 7.7767 18050.54152, 7.4542 18115.94203, 7.1717 18181.81818, 6.8867 18248.17518, 6.5992 18315.01832, 6.3567 18382.35294, 6.1042 18450.1845, 5.8642 18518.51852, 5.6767 18587.36059, 5.4742 18656.71642, 5.3092 18726.59176, 5.1467 18796.99248, 5.0142 18867.92453, 4.8967 18939.39394, 4.7942 19011.40684, 4.7192 19083.96947, 4.6567 19157.08812, 4.5992 19230.76923, 4.5867 19305.01931, 4.5892 19379.84496, 4.6092 19455.25292, 4.6667 19531.25, 4.7442 19607.84314, 4.8542 19685.03937, 4.9767 19762.84585, 5.1517 19841.26984, 5.3192 19920.31873, 5.5042 20000, 5.7392 20080.32129, 5.9742 20161.29032, 6.2317 20242.91498, 6.4742 20325.20325, 6.7467 20408.16327, 7.0392 20491.80328, 7.3492 20576.13169, 7.6892 20661.15702, 8.0217 20746.88797, 8.3817 20833.33333, 8.7242 20920.50209, 9.0842 21008.40336, 9.4167 21097.04641, 9.7292 21186.44068, 10.0092 21276.59574, 10.3592 21367.52137, 10.7217 21459.22747, 11.0692 21551.72414, 11.4192 21645.02165, 11.7242 21739.13043, 12.0142 21834.06114, 12.2642 21929.82456, 12.4967 22026.43172, 12.6867 22123.89381, 12.8717 22222.22222, 13.0367 22271.71492, 13.0937 22321.42857, 13.1162 22371.36465, 13.1587 22421.52466, 13.1712 22471.91011, 13.0912 22522.52252, 13.1262 22573.36343, 13.1287 22624.43439, 13.0987 22675.73696, 13.0787 22727.27273, 13.1012 22779.04328, 13.0837 22831.05023, 13.0987 22883.29519, 13.0787 22935.77982, 13.0887 22988.50575, 13.0612 23041.47465, 13.0712 23094.68822, 13.0287 23148.14815, 12.9762 23201.85615, 12.9062 23255.81395, 12.8887 23310.02331, 12.8162 23364.48598, 12.8112 23419.20375, 12.7812 23474.1784, 12.7412 23529.41176, 12.7637 23584.90566, 12.7412 23640.66194, 12.7162 23696.68246, 12.6387 23752.96912, 12.5987 23809.52381, 12.5787 23866.34845, 12.4562 23923.44498, 12.4512 23980.81535, 12.3162 24038.46154, 12.2762 24096.38554, 12.2237 24154.58937, 12.2087 24213.07506, 12.1287 24271.84466, 12.0987 24330.90024, 12.0312 24390.2439, 11.9237 24449.87775, 11.8187 24509.80392, 11.7162 24570.02457, 11.6137 24630.54187, 11.4987 24691.35802, 11.3287 24752.47525, 11.2512 24813.89578, 11.0362 24875.62189, 10.9212 24937.65586, 10.7012 25000, 10.5637 25062.65664, 10.4112 25125.62814, 10.1662 25188.91688, 9.9337 25252.52525, 9.7462 25316.4557, 9.4987 25380.71066, 9.2887 25445.29262, 9.0287 25510.20408, 8.8137 25575.44757, 8.5837 25641.02564, 8.3762 25706.94087, 8.1312 25773.19588, 7.9562 25839.79328, 7.7637 25906.73575, 7.5962 25974.02597, 7.3337 26041.66667, 7.1762 26109.66057, 6.9912 26178.01047, 6.7987 26246.71916, 6.5512 26315.78947, 6.3387 26385.22427, 6.1787 26455.02646, 6.0462 26525.19894, 5.9012 26595.74468, 5.7412 26666.66667, 5.6087 26737.96791, 5.4337 26809.65147, 5.3462 26881.72043, 5.2812 26954.1779, 5.2237 27027.02703, 5.0962 27100.271, 5.0237 27173.91304, 4.9237 27247.9564, 4.8787 27322.40437, 4.8687 27397.26027, 4.7662 27472.52747, 4.7337 27548.20937, 4.7187 27624.30939, 4.7687 27700.83102, 4.8487 27777.77778, 4.8287 27855.1532, 4.7362 27932.96089, 4.7837 28011.20448, 4.8112 28089.88764, 4.8162 28169.01408, 4.7912 28248.58757, 4.8712 28328.6119, 4.9562 28409.09091, 5.0312 28490.02849, 5.1737 28571.42857, 5.2412 28612.30329, 5.24795 28653.29513, 5.34795 28694.40459, 5.40295 28735.63218, 5.47795 28776.97842, 5.53545 28818.4438, 5.59295 28860.02886, 5.64045 28901.7341, 5.77795 28943.56006, 5.79795 28985.50725, 5.87545 29027.5762, 5.97045 29069.76744, 6.09295 29112.08151, 6.12045 29154.51895, 6.19795 29197.08029, 6.28295 29239.76608, 6.30545 29282.57687, 6.32795 29325.5132, 6.43795 29368.57562, 6.53045 29411.76471, 6.57795 29455.081, 6.63795 29498.52507, 6.75295 29542.09749, 6.84045 29585.79882, 6.95295 29629.62963, 7.01545 29673.5905, 7.07795 29717.68202, 7.15045 29761.90476, 7.22795 29806.25931, 7.33045 29850.74627, 7.46545 29895.36622, 7.49295 29940.11976, 7.65545 29985.0075, 7.77295 30030.03003, 7.87295 30075.18797, 8.01045 30120.48193, 8.10045 30165.91252, 8.24295 30211.48036, 8.28045 30257.18608, 8.42295 30303.0303, 8.54295 30349.01366, 8.72795 30395.13678, 8.81545 30441.4003, 8.98295 30487.80488, 9.10795 30534.35115, 9.26295 30581.03976, 9.33045 30627.87136, 9.46295 30674.84663, 9.60795 30721.96621, 9.78295 30769.23077, 9.85295 30816.64099, 10.01795 30864.19753, 10.11545 30911.90108, 10.36545 30959.75232, 10.39795 31007.75194, 10.57795 31055.90062, 10.78545 31104.19907, 11.00795 31152.64798, 11.15295 31201.24805, 11.27295 31250, 11.47795 31298.90454, 11.63795 31347.96238, 11.89545 31397.17425, 12.00045 31446.54088, 12.26795 31496.06299, 12.39045 31545.74132, 12.56545 31595.57662, 12.77045 31645.56962, 12.96545 31695.72108, 13.21795 31746.03175, 13.46545 31796.50238, 13.68795 31847.13376, 13.75795 31897.92663, 14.06795 31948.88179, 14.23795 32000, 14.53045 32051.28205, 14.80545 32102.72873, 14.97295 32154.34084, 15.31295 32206.11916, 15.51045 32258.06452, 15.88545 32310.17771, 16.05295 32362.45955, 16.43295 32414.91086, 16.56795 32467.53247, 16.91545 32520.3252, 17.47545 32573.2899, 17.82545 32626.42741, 18.33545 32679.73856, 18.78295 32733.22422, 19.06795 32786.88525, 19.76295 32840.7225, 20.41795 32894.73684, 21.18295 32948.92916, 21.60045 33003.30033, 22.45295 33057.85124, 23.76795 33112.58278, 24.52795 33167.49585, 25.58295 33222.59136, 27.06545 33277.87022, 28.53295 33333.33333, 29.90795