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| Thursday, June 20, 2013 |
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| [Thursday, October 14, 2010] |
| What is the difference between marble and granite and what was the technique to identify them? |
| Hard & Resilient Floor Care - BHAVANI CHOWDARY GARIKAPATI |
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Marble is a metamorphic rock based on limestone while granite is volcanic in origin. Granite is much harder than marble, but both can be polished to a high gloss.
The simplest test I can think of consists of putting a few drops of acid bowl cleaner (with hydrochloric (muriatic) acid) onto a piece of stone in an out-of-the-way place and watching for a reaction. Bubbles indicate marble (the limestone dissolves), and none show granite or another non-reactive stone.
Lynn E. Krafft, ICAN/ATEX Editor
lekrafft@juno.com
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| ICAN representative |
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