Sample: Spurr_1900_1


Sample ID: Spurr_1900_1 [1]
Station ID: Spurr_1900_1
AT Num:
Volcano:
Possible source:
Eruption:
Collector: Spurr, J. E.
Date sampled: 1898-01-01
Sample type 1:
Color:
Final unit:
Text Description: Coarse-grained augite-biotite-hornblende belugyte, which contains striated feldspars, abundant pale-green augite, some biotite and hornblende, and considerable pyrite. The feldspars when tested by optical methods show a variation between labradorite and andesine.
Sample Location:

References Cited

[1] Classification of igneous rocks according to composition, 1900

Spurr, J.E., 1900, Classification of igneous rocks according to composition: American Geologist, v. 25, p. 210-234.