feldspathic
Americanadjective
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Etymology
Origin of feldspathic
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.
The terms quartz wacke, lithic wacke, and feldspathic wacke are used.
From Textbooks ● Jan. 1, 2015
Some of the porphyritic rocks above mentioned are highly quartzose, others very feldspathic.
From The Student's Elements of Geology by Sir Charles Lyell
Several strata of purplish porphyritic conglomerate, of no very great thickness, rest conformably upon the feldspathic slate.
From Geological Observations on South America by Charles Darwin
In the midst of these singular rocks, no doubt of ancient submarine volcanic origin, a high hill of feldspathic clay-slate projected, retaining its usual cleavage.
From Geological Observations on South America by Charles Darwin
The gentle passage of the feldspathic slate, at Jajuel, into the porphyritic conglomerate, which is certainly of aqueous origin, should also be taken in account.
From Geological Observations on South America by Charles Darwin
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