Secondary standard
NOTES: Homogeneous, but stay away from cracks and pits, and melt matrix on the lower right.
 |  |
| Position | 90 |
| Mineral | Hornblende 2 |
| Sample Name | Horn 2 |
| Type | Amphibole |
| Nominal formula | [ ](Na,Ca)2(Mg,Fe,Ti,Al)5(Si,Al)8O22(OH,O)2 |
| Supplier | Kurt Hollocher |
| Source | Unknown |
| Original reported analysis | Phenocryst in a dark gray andesite |
| Composition quality | Secondary standard |
| Comments | Analysis shown is based on EDS and stoichiometric constraints, but needs checking. |
| H O Na Mg Al Si K Ca Ti Mn Fe | 0.23 43.98 1.72 8.2 6.71 20.66 0.66 8.38 2.06 0.17 7.23 |
