Learn how to use feldspar in a 英语 sentence. Over 3 hand-picked examples.
Rocks take time to decompose, especially quartz and feldspar.
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The tan color of most sand beaches is the result of iron oxide, which tints quartz a light brown, and feldspar, which is brown to tan in its original form.
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Minerals such as quartz and feldspar are common in granite.
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