Soapstone varies on the Mohs scale between 1 and 5; most soapstone ranks between 2.5 and 3.5. That makes it similar in hardness to marble, with a Mohs value of 3, and much softer than quartz, with a Mohs value of 7. While hardness is desirable in a countertop for structural stability, what soapstone lacks in hardness, it makes up for in density. Soapstone particles are extremely compact—more so than those of quartz, marble, or granite—which makes it more sanitary and easier to wipe clean.
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