| Untitled Page 14
(C) Hall Cases Number |
Mineral etc | Composition - Notes etc crystal
| Old number etc
|
C88 | labradorite (gray) | {in Anorthosite rock Labra. = Ab30An70 Triclinic, pinacoidal SpG. = 2.7. gray-greenish, Archean
| none |
C90 89. | Albite twinning striations plagio. felds. on basal 001 face
| 2 planes, perfect - basal (001) + brachypinacoidal (101)? - [L?] = | 86°3" |
C90 | Garnet (top of case (1.good crystal - 1') and 2nd (poorer crystal) | almost 1' in diam. Isom. dodecahedrons, [pf?], Archean? Grenville. dodecahedral parting | student coll 2003 |
C91 | Garnet dodecahedrons | (on top of case) in light colored syenitic? gneiss
| none |
C91 | Garnet " | in gabbroic - gneiss, Archean [pf?] - Almandite and pyrope var etc
| none |
C93 | " " mostly Almandite? var. | (H=75-8.) sy Mpt. schistose large Amphibole - black monoclinic - crystals + chlorite?
| ? |
C94 | Garnet Schist | with muscovite (sericite), Kyanite and qtz. meta. rock. Mt. Holly complex - Gassetts, Vt. |
C95. | Pyrite FeS2
| | Untitled Page 14
(C) Hall Cases Number |
Mineral etc | Composition - Notes etc crystal
| Old number etc
|
C88 | labradorite (gray) | {in Anorthosite rock Labra. = Ab30An70 Triclinic, pinacoidal SpG. = 2.7. gray-greenish, Archean
| none |
C90 89. | Albite twinning striations plagio. felds. on basal 001 face
| 2 planes, perfect - basal (001) + brachypinacoidal (101)? - [L?] = | 86°3" | |