I wrote: 'Granite is different from most other natural stones like marble and travertine because it is virtually un-scratchable.' Definition of 'virtual':
vir·tu·al·ly
ˈvərCH(əw)əlē/
adverb
1.
nearly; almost.
"virtually all those arrested were accused"
synonyms: effectively, in effect, all but, more or less, practically, almost, nearly, close to, verging on, just about, as good as, essentially, to all intents and purposes, roughly, approximately;
I was not 'adamant' that granite couldn't be scratched. Definition of 'adamant'...
ad·a·mant
ˈadəmənt/Submit
adjective
1.
refusing to be persuaded or to change one's mind.
"he is adamant that he is not going to resign"
synonyms: unshakable, immovable, inflexible, unwavering, unswerving, uncompromising, insistent, resolute, resolved, determined, firm, steadfast; More
My reference to the 'virtual unscratchability' of granite is in juxtaposition to marble and granite. (look up juxtaposition with the dictionary you need to buy)
According to
http://www.asgranite.com/FAQS.aspx
Can you scratch granite?
In general it is very difficult to scratch. Granite is one of the hardest stones in the world and is highly resistant to scratching in ordinary use. A knife blade will not scratch granite. It can be scratched by another piece of granite or with specially sharpened tools designed to work with granite like tungsten and diamond blades.
You wrote: "Why does this matter? Because some guy going into a home or business to do some sort of service is under the impression that he can't hurt the granite floor may have a little dirt or something under his wheels on his equipment."
Some guy going into a HOME or business can hurt a granite floor? Granite floors are almost never in homes. In homes, granite is almost always installed on countertops or in showers. Commercial granite floors are either shiny or flamed. (not flames as you said) Both are cleanable and treatable by the average carpet cleaner with proper education.
I never told or suggested that cleaners do not need to cover granite floors while transporting equipment across them.
Thank you for setting up my next article which is about how to get treat stressed shiny granite floors that is suffering from loss of clarity due to micro-abrasions and contamination.
Your'e pretty smart. Just remember the context of the article and that this isn't a science blog.
rob