Mean and selected analyses from Himalayan metapelite L429

Mineral	Bt	Bt	Grt	Grt	Ms	Ms	Pl	Pl
#	8	2	1.01	1.15	4	2	4	2
Description	mean hi-Ti	adj.Grt	rim	core	high-Si	low-Si	matrix	adj.Grt
Interpretation	peak	peak?	peak	early	early	peak	early?	peak?
SiO2	37.41	37.00	39.19	38.44	48.26	47.37	60.26	58.77
TiO2	1.63	1.72	-	0.17	0.57	0.25	0.00	0.00
Al2O3	19.24	19.45	21.96	21.32	33.38	35.30	24.78	26.09
Cr2O3	0.04	0.06	0.02	0.05	0.03	0.04	n.a	n.a
FeO	14.85	15.37	29.34	25.36	1.12	1.14	0.02	0.16
MnO	0.02	0.02	0.10	4.41	0.02	0.01	0.00	0.00
MgO	12.84	12.38	4.72	1.63	1.49	0.92	0.00	0.00
CaO	0.01	0.01	6.09	8.98	0.01	0.01	6.05	7.37
Na2O	0.24	0.26	0.03	0.02	0.62	0.73	7.84	7.16
K2O	9.48	9.48	-	-	10.54	10.35	0.37	0.12
Total	95.76	95.75	101.45	100.38	96.04	96.12	99.32	99.67
Oxygens	22	22	12	12	22	22	8	8
Si	5.516	5.475	3.025	3.036	6.359	6.231	2.698	2.631
Ti	0.181	0.191	-	0.010	0.056	0.025	-	-
Al	3.344	3.393	1.999	1.985	5.186	5.474	1.308	1.377
Cr	0.005	0.007	0.001	0.003	0.003	0.004	-	-
Fe2+	1.831	1.902	1.894	1.675	0.123	0.125	0.001	0.006
Mn	0.002	0.003	0.007	0.295	0.002	0.001	-	-
Mg	2.822	2.730	0.543	0.192	0.293	0.180	-	-
Ca	0.002	0.002	0.504	0.760	0.001	0.001	0.290	0.353
Na	0.069	0.075	0.004	0.003	0.158	0.186	0.681	0.621
K	1.783	1.790	-	-	1.772	1.737	0.021	0.007
Sum	15.555	15.566	7.977	7.961	13.955	13.966	4.999	4.995
XMg	0.606	0.589	0.223	0.103	0.703	0.590	-	-