Sample	MG3D	MG3D	MG3D	MG3D	MG3B	MG3B	MG3B	MG3B	MG3D	MG3D	MG3D	MG3D	MG1C	MG1C	MG3D	MG3D
Mineral	plagioclase 1							plagioclase 2					Alkaline Feldspar
Analyse N˚	24	40	42	11	5	6	24	25	5	6	7	24	2	3	5	10
SiO₂	63.59	63.76	61.97	63.07	62.99	62.99	63.3	68.18	68.19	68.14	67.35	67.3	63.36	63.28	63.25	63.19
Al₂O₃	18.05	17.92	18.59	18.23	18.22	18.24	18.14	19.97	19.67	19.54	19.46	19.17	18.14	18.4	17.99	18.33
TiO₂	0.03	0	0.14	0.01	0.05	0	0	0.03	0.02	0.07	0.01	0.01	0	0	0	0
FeO	0.1	0.16	0.11	0.01	0.1	0.12	0.07	0	0.06	0.1	0	0.01	0.11	0.21	0.69	0.14
MnO	0	0.07	0	0.09	0	0	0	0	0.01	0	0	0	0	0.09	0	0
MgO	0.01	0.03	0.01	0.01	0	0	0	0	0.01	0	0	0.01	0	0	0.01	0.02
CaO	3.5	5.86	3.36	5.45	6.5	7.8	5.19	0.41	0.49	0.47	0.29	1.18	0	0	0	0
Cr₂O₃	0	0.06	0.04	0	0	0.05	0	0	0	0	0	0	0.09	0.03	0.04	0.01
NiO
Na₂O	14.29	11.71	15.69	13.1	11.07	10.16	12.87	11.52	11.84	11.64	11.94	11.85	0.47	0.34	0.24	0.38
K₂O	0.03	0.036	0.042	0.056	0.34	0.42	0.34	0.06	0	0	0	0	16.13	16.89	16.56	16.39
TOTAL	99.57	99.57	99.91	99.97	99.27	99.78	99.91	100.18	100.29	99.95	99.05	99.53	98.3	99.24	98.78	98.46
Structural formula (8 Oxygen)
Si	2.88	2.88	2.82	2.85	2.86	2.85	2.86	2.97	2.98	2.98	2.98	2.97	2.99	2.97	2.98	2.98
Al	0.96	0.95	1	0.97	0.97	0.97	0.97	1.03	1.01	1.01	1.01	1	1.01	1.02	1	1.02
Fe	0	0.01	0	0	0	0	0	-	0	0	-	0	0	0.01	0.03	0.01
Ca	0.17	0.28	0.16	0.26	0.32	0.38	0.25	0.02	0.02	0.02	0.01	0.06	-	-	-	-
Na	1.25	1.03	1.38	1.15	0.97	0.89	1.13	0.97	1	0.99	1.02	1.01	0.04	0.03	0.02	0.03
K	0	0	0	0	0.02	0.02	0.02	0	-	-	-	-	0.97	1.01	1	0.99
TOTAL	5.27	5.15	5.37	5.24	5.15	5.12	5.23	5	5.02	5	5.03	5.04	5.01	5.04	5.03	5.02
%An	11.91	21.63	10.57	18.65	24.13	29.23	17.97	1.92	2.24	2.18	1.32	5.22	-	-	-	-
%Ab	87.97	78.21	89.28	81.12	74.37	68.9	80.63	97.74	97.76	97.82	98.68	94.78	4.24	2.97	2.16	3.4
%Or	0.12	0.16	0.16	0.23	1.5	1.87	1.4	0.33	-	-	-	-	95.76	97.03	97.84	96.6