A Geoscience Digital Image Library

TitleTaeniolite and plagioclase in pegmatite
DescriptionTaeniolite has formula KLiMg2Si4O10F2. It is a lithium-bearing mica similar in many ways to lepidolite (but contains magnesium instead of aluminum). Here it is found in brownish flakey masses within an oligoclase (plagioclase) pegmatite. Minor light brown monazite is also present but hard to pick out. This specimen is 13 cm across.
LocationCanada ▹ Manitoba. Cole Lake.
PhotographerNessa Eull. 2001-06-29.
CollectionUniversity of North Dakota Mineralogy Collection #1000.
Key wordsmonazite, taeniolite, plagioclase, Manitoba, Canada
Tech details633 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number968