Pompeii Granite
Hi -
With regard to Pompeii granite from Brazil… I saw some comments to the fact (not necessary from your blog) that it is not a true granite, and is also a weak/fractured granite. What are your thoughts on this and how should this effect my decision to use it as a kitchen countertop. Is this anything I should be concerned about, or any special requirements (overhangs) that would be necessary with this granite?
Thanks so much for your insight.
Michelle
Hello Michelle,
I would not be concerned about this granite unless the actual slabs that will be used for your kitchen have open fissures. Feel the entire slab and If that is the case, then simply select other slabs that do not have open fissures.
Pompeii granite is truly beautiful; however, it is considered a ‘Class D’ granite like many other large mineral structured granites. Basically, it has enough quartz mineral content to be considered a granite but the mineral bonding structure is weaker than other tighter (smaller matrix) granite colors that were formed over a slower period of time when the Earth was cooling. This is typical of so called, ‘Exotic granites’. In other words, don’t worry about the granite, just worry about the actually slabs that will be used in your kitchen.
Regarding overhangs, you should be a little more careful because the bonding structure is weaker. Type, ‘overhang’ in my blog’s search box and you will read that overhangs should be supported with corbels or steel angles. I would need more details about your specific situation to comment but if you follow normal overhand support recommendations, then you don’t have to worry.
Be sure to read my ‘Homeowners Checklist‘. I hoped that I have helped!
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