Cinder

Cinder

A cinder is a pyroclastic material. Cinders are extrusive igneous rocks. Cinders are similar to pumice, which has so many cavities and is such low-density that it can float on water. The colour of cinder is brown.

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Famous quotes containing the word cinder:

    “When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That’s relativity.”
    —Albert Einstein (1879–1955)