yup  but if it is intact you might be able to get away with it.

On Fri, Feb 3, 2012 at 6:08 AM, Mike Marsoun <nulifesc@bigpond.com> wrote:
Thanks. Especially black which is softer.
Sent via BlackBerry® from Telstra

-----Original Message-----
From: "Cleaning Edge, Inc." <rfrye@comcast.net>
Date: Thu, 02 Feb 2012 23:53:23
To: Restoration and Maintenance<sccpartners@stoneandtilepros.com>
Reply-To: "Restoration and Maintenance" <sccpartners@stoneandtilepros.com>
Subject: RE: [sccpartners] No subject

Q. wondering if the silica sand would scratch the granite.


A. This link below reads silica sand is rated 6-7 on the mohs scale. It
seems that granite ranges from 6.5 to 7.5. To answer your question if the
silica sand was to come loose in the restoration process there is a good
chance it would scratch the granite.

http://www.reade.com/Particle_Briefings/mohs_hardness_abrasive_grit.html

http://www.graniteland.com/infos/home/mechanical-properties-stone



On 2/2/12 8:42 PM, "Mike Marsoun" <nulifesc@bigpond.com> wrote:

> Looking at a job with black absolute, and cashmere that will have to be
> flattened and polished. Was thinking of using copper resins. Black border,
> hallways, and bathrooms...fun stuff!  It has sanded grout (as usual) wondering
> if the silica sand would scratch the granite. There is an area outdoors that
> has been flattened, and I can see some suspicious looking scratches...
> Comments?



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