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soda-lime feldspar

American  

noun

  1. plagioclase.


Etymology

Origin of soda-lime feldspar

First recorded in 1865–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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