Proceedings of the United States National Museum . Fig. 29.—Apophyllite showing com-bination OF PYRAMID WITH FACESOF FOUR PRISMS. Albite. Chlorite. Hornblende (asbestiform) Epidote (hour-glass). Axinite. Quartz. Prehnite. 8. Datohte. 9. Chabazite. 10. Stilbite. 11. Laumontite. 12. Opal (hyalite). 13. Apophyllite. 14. Calcite. The position of albite is rather definitely fixed by its occurrenceunderlymg both chlorite and hornblende. Chlorite is in most cases a very early mineral although it may alsooccur as a later deposit. 94110—24- 82 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 6G.

---

Size: 1195px × 2091px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience