• marble ⪢⪢
_____ is a type of rock that feels cold and is smooth when cut.
http://qindex.info/i.php?x=12037

• marble ⪢⪢
The large house has floors made of _____ .
http://qindex.info/i.php?x=20274

○○○ dissolve ⪢⪢
This acid allows it to slowly _____ certain kinds of rock like limestone, marble or gypsum.
http://qindex.info/i.php?x=16430

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