Geoscience Reference
In-Depth Information
Figure 6.21 (a) Crystal of
α
-eucryptite at (i) 300
C, (ii)
350
C, (iii) 400
C, and (iv)
450
C. (b) Crystals of
β
-spodumene at (i) 350
C,
(ii) 400
C, (iii) 500
C, (iv)
550
C, and (v) 650
C
[117]
.
(a)
1121
1211
0001
0001
2111
0110
0110
1010
1100
1100
1010
95
μ
(i)
(ii)
100
μ
000
1
1121
1121
1211
1211
1211
1
12
1
2111
2111
31
2
1
11
2
0
0110
1210
0110
1010
1100
1100
1010
2201
21
10
2111
150
μ
(iii)
(iv)
120
μ
(b)
001
111
111
111
111
1
00
111
111
010
111
111
(i)
450
μ
(ii)
650
μ
101
011
001
111
001
111
010
100
100
010
111
111
400
μ
200
μ
(iii)
(iv)
112
001
1
12
011
101
111
111
110
110
010
100
11
1
11
1
112
112
(v)
450
μ
