. Bulletin of the British Museum (Natural History), Mineralogy. 142 PETROLOGICAL STUDIES IN GLEN URQUHART, INVERNESS-SHIRE metasomatism. For complexity and interest they are not matched by any of the other Glen Urquhart skarns. Mineralogy Zoisite and thulite. The cavernous growths of large zoisite crystals at the Gartally quarries have already been mentioned. Here and elsewhere among the epidosites, epidote-actinolite skarns, and plagioclase skarns both the a- and the /?-forms occur, the /?-form being the commoner of the two. Zoisite has been found in the pale- amphibole skarns and the prehnit
. Bulletin of the British Museum (Natural History), Mineralogy. 142 PETROLOGICAL STUDIES IN GLEN URQUHART, INVERNESS-SHIRE metasomatism. For complexity and interest they are not matched by any of the other Glen Urquhart skarns. Mineralogy Zoisite and thulite. The cavernous growths of large zoisite crystals at the Gartally quarries have already been mentioned. Here and elsewhere among the epidosites, epidote-actinolite skarns, and plagioclase skarns both the a- and the /?-forms occur, the /?-form being the commoner of the two. Zoisite has been found in the pale- amphibole skarns and the prehnite and pectolite skarns ; where determined in the two latter skarn types it has always proved to be/5-zoisite. The optical distinctions. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
Size: 1468px × 1703px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
