Granite, is quarried at different locations throughout the world. Hundreds of colors and patterns are available from such countries as Italy, Spain, France, China, Brazil, and The United States. Typically, blocks are extracted from the granite quarry located high in the mountains on the outskirts of a major city. These blocks, averaging 9 feet by 5 feet by 5 feet deep in size are transported down the mountain to the fabrication plant in the city. Once at the plant, these blocks are either cut into tiles or slabs. Tiles are usually cut to standard sizes of 12" x 12", 16" x 16", 18" x 18" and 24" x 24". Tiles range in thickness from 3/8" to 3/4". Slabs sizes usually vary depending on overall block size. Average slab sizes are usually 9 feet by 5 feet and are typically 3/4" (2cm) or more in thickness. After the tiles or slabs are cut, they are sent through a large multi-head polishing machine, which puts a natural shine on the face of the stone using abrasive compound bricks or diamond polishing discs. Tiles are usually beveled as a final finishing step. Several other finishes can be applied to the slabs or tiles at this time such as a honed finish or, on some granite, a flamed finish. By far, the most popular finish tends to be the high polish.
Due to it's high density, acid resistance, low absorption rate, and scratch resistance, granite can be used for a wide range of applications including floors, fireplaces, furniture and kitchen counter tops. One of the leading uses of granite is for kitchen counter tops. Hundreds of colors and patterns are available as well as numerous edge details to allow granite to fit in with any kitchen design scheme.
Mine is 1-1/8" think, solid granite. I believe this size is about the typical thickness. Below was an original response, but it does not appear to properly characterize solid granite countertops (just go to Home Depot / Lowes and see).
They are typically 2 cm with a laminated edge glued on, or 3 cm thick. The 2 cm requires 3/4" plywood substrate. Some areas of the country sell more 2 cm, others sell mostly 3 cm.
The cost difference between 2 cm and 3 cm is just a few dollars on most granites. Many shops refuse to fabricate the 2 cm due to increased breakage.
Often times granite is 3cm for residential counter tops and 2cm for commercial counter tops. Granites generally come in 2cm, 3cm and 4cm. 3cm is recommended for residential use.
Below the crust. This varies based on the thickness of the crust and it has to be continental crust for there to be granite. There are some exceptions to this but it is very complex and not very well understood at this time. The crust varies in thickness between ~25km and 70km (Basin and Range province and Himalayan Mountains, respectively).
Granite does not scratch easily. You can scratch granite with other granite or a tool designed to cut granite but that is about it. Cutting directly on your granite is not recommended as it can dull your knife but it should not create scratches in the stone.
granite
No, granite is not permeable.
no marble is not granite
Granite
A granite countertop that is thicker will be more durable, but the cost increases linearly with the thickness. The installation cost won't change much, because that's mostly labor rather than materials. Granite counter tops average about 1 inch in thickness. Any thinner and the granite is much too brittle. Any thicker and the costs sky rocket due to increased weight and materials cost.
Granite is figured at 168 pounds per cubic foot. If you know the thickness, you can determine the weight per square foot.
The standard for countertop granite thickness is usually anywhere from 0.75 inches thick to 1.25 inches thick. When shopping for granite, it is important to remember that the stone is most often priced based on either the weight or the volume. Either way, a thinner slab of granite will cost less then a thicker slab, but both will look the same.
Granite is figured at 168 pounds per cubic foot. If you know the thickness, you can determine the weight per square foot.
Te thicker it is the more it will cost. It costs more because you are getting more.
Below the crust. This varies based on the thickness of the crust and it has to be continental crust for there to be granite. There are some exceptions to this but it is very complex and not very well understood at this time. The crust varies in thickness between ~25km and 70km (Basin and Range province and Himalayan Mountains, respectively).
The average density of granite is 2.7 grams per cubic centimeter (your particular granite may vary slightly, so if you want a high level of accuracy, you should measure it, weight divided by volume equals density). If you have the dimensions of granite plate, you can calculate the volume of that plate; length x width x thickness = volume. And then volume times density is weight.
Any amount you like. You can vary the thickness of the granite to get any mass per square metre. A super-thin wafer could weigh micrograms per sq metre while a block of granite several kilometres high but only 1 sq metre in cross section could have a mass of tons.
The Earths Crust can be divided between Oceanic Crust and Continental Crust. Oceanic and Continental Crust are quiet different. The thickness of oceanic crust is between 5km and 10km. It is made of mainly basalt, grabbo and diabise. The thickness of continental crust is between 30km and 50km. It is made up of lighter rocks such as granite.
It has to be ground back using dimond grinding tools. This is normally done when the top is removed as to do it in situe is nearly impossible.
Typically 3/4" to 1-1/8", but if you would like a thicker edge, they can laminate another piece at the edge to make it thicker.