Fabrication of dense albite aggregates by hot pressing

Progress in Earth and Planetary Science

Table 4 Example of chemical compositions of a hot-pressed sample (Exp. #13)

Analytical points	1	2	3	4	5	6	7	8	9	10	11
SiO₂ (Oxide wt.%)	69.65	68.98	69.42	69.22	69.48	69.23	69.46	69.34	69.37	69.16	69.35
Al₂O₃ (Oxide wt.%)	20.44	20.45	20.61	20.83	20.61	20.82	20.63	20.69	20.60	20.46	20.61
Na₂O (Oxide wt.%)	11.65	11.50	11.67	11.62	11.63	11.65	11.60	11.53	11.60	11.47	11.69
K₂O ( Oxide wt.%)	0.03	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.04
CaO (Oxide wt.%)	0.84	0.76	0.79	0.79	0.78	0.77	0.17	0.75	0.77	0.82	0.78
MgO (Oxide wt.%)	0.02	0.19	0.18	0.21	0.17	0.25	0.17	0.17	0.13	0.17	0.17
BaO (Oxide wt.%)	0.00	0.00	0.11	0.04	0.00	0.00	0.08	0.11	0.00	0.00	0.00
P₂O₅(Oxide wt.%)	0.30	0.39	0.36	0.36	0.37	0.40	0.27	0.34	0.39	0.39	0.43
Tl₂O (Oxide wt.%)	0.73	0.63	0.75	0.68	0.74	0.59	0.02	0.76	0.69	0.65	0.68
Total (Oxide wt.%)	103.66	102.90	103.89	103.75	103.78	103.71	102.41	103.69	103.55	103.12	103.75
Si (No. of cations)	2.95	2.95	2.95	2.94	2.95	2.94	2.95	2.95	2.95	2.95	2.94
Al (No. of cations)	1.02	1.03	1.03	1.04	1.03	1.04	1.03	1.04	1.03	1.03	1.03
Na (No. of cations)	0.96	0.95	0.96	0.96	0.96	0.96	0.96	0.95	0.96	0.95	0.96
K (No. of cations)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Ca (No. of cations)	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
Mg (No. of cations)	0.01	0.01	0.01	0.02	0.01	0.02	0.01	0.01	0.02	0.01	0.01
Ba (No. of cations)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
P (No. of cations)	0.01	0.02	0.02	0.02	0.02	0.02	0.01	0.01	0.02	0.02	0.02
Tl (No. of cations)	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
An (mol%)	4.02	3.55	3.52	3.54	3.54	3.54	3.54	3.55	3.54	4.06	3.52
Ab (mol%)	95.98	96.45	96.48	96.46	96.46	96.46	96.46	96.45	96.46	95.94	96.48