Sample | L443R3/137.6 | L434R1/18.95 | L434R1/21.10 | L434R1/20.95 | ||||||
Mineral | Mnz1 | Mnz2 | Mnz3 | Mnz4 | Bsn1 | Bsn 2 | Bsn 3 | Aln1 | Aln2 | Aln3 |
SiO2 (wt%) | 1.53 | 0.93 | 2.89 | 3.21 | 1.86 | 2.26 | 2.80 | 30.16 | 31.40 | 32.22 |
P2O5 | 27.58 | 27.69 | 28.43 | 28.36 | 0.14 | 0.09 | 0.10 | 0.14 | 0.05 | 0.19 |
CaO | 0.39 | 0.20 | 0.25 | 0.24 | 8.99 | 7.49 | 6.19 | 11.79 | 10.52 | 10.68 |
TiO2 | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 1.27 | 1.32 | 1.27 |
Al2O3 | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 10.29 | 10.67 | 10.19 |
FeO | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 10.30 | 9.59 | 8.84 |
UO2 | 0.21 | 0.07 | 0.05 | 0.03 | 0.02 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 |
ThO2 | 3.40 | 3.21 | 1.59 | 1.53 | 3.82 | 0.36 | 1.20 | 0.80 | 1.32 | 1.51 |
Y2O3 | 1.43 | 1.00 | 1.20 | 1.59 | 2.41 | 1.74 | 3.44 | 0.09 | 0.04 | 0.09 |
Ce2O3 | 30.75 | 30.04 | 33.11 | 33.00 | 22.23 | 33.68 | 31.66 | 18.39 | 20.10 | 20.39 |
Nd2O3 | 12.83 | 10.35 | 12.25 | 12.49 | 7.82 | 11.64 | 11.14 | 5.99 | 5.13 | 5.89 |
La2O3 | 12.33 | 11.82 | 13.20 | 13.58 | 10.43 | 17.94 | 13.70 | 7.99 | 7.19 | 6.37 |
Pr2O3 | 3.27 | 3.30 | 3.57 | 3.37 | 2.19 | 3.23 | 2.95 | 0.65 | 1.02 | 0.76 |
Sm2O3 | 1.99 | 2.07 | 2.22 | 1.92 | 1.11 | 1.33 | 1.99 | 0.41 | 0.51 | 0.38 |
Gd2O3 | 1.51 | 1.34 | 1.55 | 1.43 | 0.95 | 0.80 | 1.72 | 0.11 | 0.25 | 0.08 |
Dy2O3 | 0.45 | 0.26 | 0.45 | 0.56 | 0.55 | 0.22 | 0.79 | 1.40 | 1.37 | 1.65 |
Ho2O3 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | n.d. | n.d. | n.d. |
Er2O3 | 0.10 | 0.12 | 0.03 | 0.10 | 0.18 | 0.17 | 0.29 | 0.17 | 0.01 | 0.30 |
Yb2O3 | 0.01 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.03 | 0.05 | 0.00 | 0.14 |
Lu2O3 | 0.00 | 0.00 | 0.02 | 0.15 | 0.03 | 0.07 | 0.04 | 0.21 | 0.05 | 0.00 |
REE | 63.33 | 59.32 | 66.41 | 66.59 | 45.56 | 69.14 | 64.31 | 35.37 | 35.63 | 35.95 |
F | 1.05 | 0.93 | 1.97 | 1.07 | 9.01 | 8.01 | 6.71 | 0.47 | 0.51 | 0.50 |
Total | 97.95 | 99.11 | 100.88 | 101.64 | 72.03 | 89.33 | 84.89 | 100.29 | 100.59 | 100.96 |
Structural formulae based on 4 oxygen atoms | ||||||||||
Si (apfu) | 0.15 | 0.10 | 0.25 | 0.28 | 0.17 | 0.20 | 0.27 | 1.19 | 1.22 | 1.24 |
P | 1.12 | 1.20 | 1.04 | 1.05 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Ca | 0.04 | 0.02 | 0.02 | 0.02 | 0.90 | 0.71 | 0.63 | 0.50 | 0.44 | 0.44 |
Ti | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 0.04 | 0.04 | 0.04 |
Al | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 0.24 | 0.24 | 0.23 |
Fe | n.d | n.d. | n.d | n.d | n.d | n,d. | n.d | 0.34 | 0.31 | 0.28 |
U | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Th | 0.07 | 0.07 | 0.03 | 0.03 | 0.08 | 0.01 | 0.03 | 0.01 | 0.01 | 0.01 |
Y | 0.03 | 0.02 | 0.02 | 0.03 | 0.05 | 0.04 | 0.08 | 0.00 | 0.00 | 0.00 |
Ce | 0.54 | 0.56 | 0.52 | 0.53 | 0.38 | 0.55 | 0.55 | 0.13 | 0.14 | 0.14 |
Nd | 0.20 | 0.19 | 0.19 | 0.19 | 0.13 | 0.18 | 0.19 | 0.04 | 0.04 | 0.04 |