travertine
Travertine Travertine is a banded, compact variety of limestone commonly formed along streams, where there are waterfalls or around hot or cold springs. The holes in travertine were created by…
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travertine
Travertine Travertine is a banded, compact variety of limestone commonly formed along streams, where there are waterfalls or around hot or cold springs. The holes in travertine were created by…