lava	basalte
sample	NGV1	NGV2	NGV3	NGV4	NGV5	BD1	BD2
SiO₂	38.38	38.67	38.73	38.49	37.72	38.72	38.21
FeO	19.29	19.57	19.57	19.78	22.24	19.92	23.91
MnO	0.22	0.28	0.24	0.26	0.32	0.34	0.49
MgO	41.02	40.89	41.05	40.76	38.89	40.96	36.26
CaO	0.25	0.26	0.22	0.25	0.14	0.24	0.23
NiO	0.04	0.13	0.1	0.1	0.07	0.12	0.01
Total	99.21	99.79	99.92	99.62	99.38	100.31	99.11
Fa	21.1	21.4	21.3	21.6	24.6	21.7	27
Mg #	79.1	78.9	78.9	78.9	78.6	78.6	75.7
Si	0.991	0.996	0.995	0.993	0.989	0.993	1.015
Fe²⁺	0.417	0.421	0.42	0.427	0.487	0.427	0.531
Mn	0.005	0.006	0.005	0.006	0.007	0.007	0.011
Mg	1.579	1.569	1.572	1.568	1.519	1.566	1.436
Ca	0.007	0.007	0.006	0.007	0.004	0.007	0.006
Ni	0.001	0.003	0.002	0.002	0.001	0.003	0
Fo	78.9	78.6	78.7	78.4	75.4	78.3	73