20 J. H. L. VOGT. M.-N. KI. 
rg 
No. | SiO, 4hOs| CaO | MgO | MnO | Fe0 | MnS | Sum es 
| JE 
151 | 34.30| 0.78 | 33.72 | 4:68 | 0.86 25.64 99.98 | 1.03 
159a| ( 38.80} 2.12 | 31.30 | 410 | 19.54 | 5.58 99.15 | 1.02 
152b| | 31.30} 5.92 | 33.40 | 0.98 | 15.91 | 8.64 99.58 0.90 
153 | 36.5 | 3.5 33.8 | 10.0 | 11.5 0.5 | 3.8 98.5 | 1.08 
154 | 31.80) 5.33 | 24.59 | 5.57 | 29.86 |Spur | 3.72 | 100.87 | 0.92 
155 | 33.70 | 3.50 | 31.80 | 13.85 16.20 | 99.06 | 0.99 
Tabelle zur Beleuchtung der Zusammensetzung der Akerman'schen Schmelzserien. 
Ca-Mg-Silikate. 
No. Si0,| 42,03 | CaO |MgO|MnO | FeO) Sum | Ca: Mg 
3.00— ( 208 |620| 0.4 |35.6 | 1.3 | 0106 ‚100.0 0.953 : 0.047 
Silikat (294 (65.1 | 06 1195 |139 | 0.1 0.8 1000 | 0.50: 0.50 
250— f 991 57.7 | 04 [39.7 | 1.5 ! 0.1 |0.6 |100.0 | 0.95:0.05 
Silikat | 243 61.0 | 06 219 115.6 | 0.1 0.8 100.0 | 0.50:0.50 
5 250 521 | 04 |45.0 | 1.7 | 0.2 06 |100.0 10.949 : 0.051 
200— | 280 155.5 | 0.7 195.0 179 | 0.1 08 |100.0 | 0.50 :0.50 
ilikat | 969 1585 | 09 | 79 131.7  |1.0 |100.0 0.153: 0.847 
150— | 270 4494 045 15180 1.95 0.19 0.67 100.00! 0.95 : 0.50 
150 | 981 1484 | 0.8 |290 1208 | 0.1 09 |100.0 | 0.50: 0.50 
ilikat | 989 |49.51| 0.90 |21.46|27.05, 0.07 1.01) 100.00 0.362 : 0.638 
Ca-Mn-Silikate. 
| | Bern 
No. SiO,| 42,03 |Na,O|CaO Mg0\Mn0 = Ca: Mn 
200— 1302 Isosı 038 | 041 Isis] 1.34/11.97056) 0:80:020 
Silikat | 307 45.89 0.05 | 0.52 | 0.20 53.12 0.28 2 0.00 : 0.995 
: Ca Al; -Silikate. 
oe å — 
Si0,| 41,05 |Na,0 | Ca0 |MgO|MnO| FeO) Ca: Al, 
ier SME | | a 
1.00 (347 3669 6.99 | 0.04 53.43 2.01 | 0.19 0.65) 0.94:0.06 
Silikat 4 352 38.92 1847 | 0.11 40.29 152 | 0.14 0.55 | 0.81 : 0.19 
356 40.93 98.34 | 0.16 28.92 1.09 | 0.10 | 0.46 | 0.67 : 0 33 
070 | 329 30.27, 1650 | 0.09 50.46 191 0.18) 0.59) 0.86 :0.14 
N | 364 32.55) 30.09 | 0.17 |35.25) 1.34 0.13| 0.47 | 0.70: 0.30 
ilikat | 367 3464 42.47 | 0.25 |21.40| 0.81 | 0.08 | 0.35) 0.50 : 0.50 
0.50 — fe (25.64 33.17 | 0.19 (38.91 1.48 0.14| 0.47| 0.70: 0.30 
Silikat | 372 |27.46| 47.11 | 0.27 |23.82| 0.19 | 0.09 | 0.34| 0.50 : 0.50 
1 In FeO ein wenig 72,0, einbegriffen. 
