25 compositions:
* 7 parts: "quartz", "microcline", "plagioclass", "biotite", "muscovite", "opaques", "nonopaques".
* 5 groups: "A", "B", "C", "D", "E".
* 0 unassigned samples.

0 missing values:
* 0 observations (0%) contain missing values.
* 0 variables (0%) contain missing values.

Data checking:
* 0% of numeric values are zero.
* 0 variables with no variance.
<GroupedComposition: 25 x 7>
    quartz microcline plagioclass biotite muscovite opaques nonopaques
S1   0.247      0.356       0.333   0.033     0.020   0.006      0.006
S2   0.268      0.357       0.326   0.035     0.004   0.006      0.004
S3   0.280      0.342       0.321   0.034     0.011   0.007      0.004
S4   0.278      0.350       0.315   0.033     0.010   0.009      0.005
S5   0.266      0.345       0.336   0.030     0.014   0.006      0.003
S6   0.273      0.355       0.321   0.025     0.015   0.008      0.003
S7   0.273      0.354       0.317   0.034     0.014   0.006      0.001
S8   0.280      0.353       0.311   0.028     0.014   0.008      0.005
S9   0.302      0.339       0.316   0.026     0.009   0.007      0.002
S10  0.287      0.352       0.314   0.026     0.013   0.006      0.002
S11  0.258      0.360       0.335   0.029     0.008   0.007      0.003
S12  0.255      0.339       0.337   0.049     0.008   0.010      0.001
S13  0.261      0.378       0.307   0.034     0.011   0.007      0.003
S14  0.262      0.360       0.295   0.057     0.013   0.011      0.001
S15  0.277      0.346       0.323   0.036     0.007   0.008      0.002
S16  0.264      0.362       0.327   0.021     0.011   0.008      0.006
S17  0.266      0.363       0.319   0.032     0.008   0.006      0.007
S18  0.281      0.364       0.306   0.024     0.010   0.010      0.006
S19  0.271      0.359       0.316   0.027     0.009   0.011      0.006
S20  0.280      0.346       0.322   0.030     0.010   0.008      0.004
S21  0.252      0.341       0.349   0.026     0.018   0.007      0.006
S22  0.286      0.345       0.316   0.027     0.016   0.006      0.004
S23  0.283      0.330       0.328   0.037     0.010   0.007      0.004
S24  0.263      0.361       0.323   0.029     0.011   0.008      0.005
S25  0.286      0.346       0.319   0.027     0.012   0.005      0.005
