Table 7 A in The Tumbarumba Basaltic Gem Field, New South Wales: In Relation to Sapphire-Ruby Deposits of Eastern Australia

Table 7A. Major elements and CIPW norms, Tumbarumba-Cabramurra basalts. oxideDRDRDRDRDRDRDRDRIGSLSLwt%14639138221383514650138201466213828146411596163SiO244.147.244.943.143.743.644.845.346.1543.7043.60TiO21.541.081.931.972.532.112.312.681.772.472.42Al2O311.917.114.414.414.714.515.017.014.9614.2016.10Fe2O32.481.932.322.262.282.282.522.343.433.205.30FeO8.936.968.358.138.218.219.078.427.327.905.30MnO0.190.160.170.170.180.170.170.190.170.150.15MgO16.809.6110.309.719.559.288.816.2710.0810.707.75CaO7.9311.909.6210.9010.0010.109.019.138.799.808.06Na2O2.472.483.894.103.323.973.473.892.853.003.30K2O0.960.121.431.541.561.631.331.710.691.261.35P2O50.560.071.101.401.421.411.160.940.661.201.50L.O.I.0.701.100.491.501.391.451.000.802.992.904.50total98.5699.7198.9098.1998.8498.7198.6598.6799.86100.4899.33Mg#0.770.710.690.680.680.670.630.570.670.680.62Mg# = Mg2+/Mg2+ + Fe2+CIPW Norms (anhydrous norms calculated using Fe2O3/FeO + Fe2O3 = 0.2)Or5.740.718.519.239.379.817.9710.234.217.638.41Ab14.9821.1114.887.5114.9911.9821.1320.1524.8815.6426.28An18.7635.3917.7216.5720.9417.2521.7224.1626.8122.0926.50Ne3.349.8915.007.3512.054.677.135.631.72Di13.8518.9618.5923.3716.1419.6912.8812.5910.8415.874.32Hy0.614.78Ol34.4217.3919.8417.0018.6917.5219.7314.0120.3722.4921.13Mt3.642.823.393.323.363.373.703.432.592.672.57Il2.962.063.693.794.894.084.455.153.474.814.85Ap1.340.172.623.363.423.402.782.251.612.913.75An%5663546958595155525950D.I.24.1621.833.331.731.733.833.837.529.1028.936.4Type (J&D)Alkali ol basaltOlivine basaltBasaniteBasaniteBasaniteBasaniteAlkali ol basaltBasaniteOlivine basaltBasaniteAlkali ol basaltType (LM)BasaniteBasaltBasaniteBasaniteBasaniteBasaniteBasaniteBasaniteBasaltBasaniteBasanite An% = (An/[An+Ab])×100.D.I. differentiation index q or ab ne, lc; Type (J&D), basalt type, based on normative mineralogy after Johnson & Duggan (1989); Type (LM), basalt type, based on Total Alkali-Silica (TAS) diagram after Le Maitre (1989). IG 159 analysis by Macquarie University Laboratories, Sydney. SL61, SL62 analyses by NSW Mineral Resources Laboratories, Lidcombe, Sydney.