soda-lime feldspar

noun

1. plagioclase.

Word History and Origins

Origin of soda-lime feldspar¹

First recorded in 1865–70

Example Sentences

Oligoclase, or soda-lime feldspar, in which soda is present in much larger proportion than lime, and of which mineral andesite are andesine, is considered to be a variety.

From Project Gutenberg