What is one of the few rocks known to be able to float on water? – Vietnameasyrider

The Quiz: What is one of the few rocks known to be able to float on water?

A Pumice
B Feldspar
C Pyrite

Pumice forms when a super-heated, pressurized rock is ejected from a volcano. Once it cools, it can be upwards of 85% porous. These air pockets allow the rock to float, possibly for years, until it becomes waterlogged and sinks.

The correct answer to this quiz is Pumice.

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