| 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 ° | | 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 ° | |