Is it possible to use a granite stone 3/4 inch thick as a pizza baking

Yes, it is, be aware they are very temperature sensitive (also moisture) so you do not want to subject it to drastic changes in temperature:

https://cookingchops.com/granite-pizza-stone-pros-and-cons/

Hi, yes you can, but I would caution against using it. It reacts to temperature differences and can crack (in some cases) violently when there are big differences in temperature.

Here are the pros and cons:

https://cookingchops.com/granite-pizza-stone-pros-and-cons/#:~:text=Can%20Granite%20Be%20Used%20As,granite%20a%20useful%20cooking%20material.

Hello. Here’s a link and some recommendations how do use it. Hope this helps.

https://askinglot.com/can-i-use-a-piece-of-granite-as-a-pizza-stone

Yes but there heavy and will get very hot

This may help: https://cookingchops.com/granite-pizza-stone-pros-and-cons/

here is info for you https://askinglot.com/can-i-use-a-piece-of-granite-as-a-pizza-stone

I would not, because some fabricators use CA glue and fillers to make their stones even and without pittsl.

Yes! Granite made specifically for baking. Granite for countertops has fillers to smooth out ant imperfections. Not good for baking. Granite can crack, spall, and flake under sudden temp changes.

Granite Pizza Stone: Pros and Con’s

Granite Pizza Stone Pros:

• Multi Purpose: Besides using them just to bake or cook, granite stones work well as food preparation and serving platters. Granite stone conducts heat very well, so it feels cool to the touch. It also keeps your dough cold while you top or even roll out your pizza. Can be used as a warming stone for other foods as well.
• Retains Heat: Granite does a great job of holding in heat for a long period of time. Because of the thermal dynamic properties of granite, as mentioned before. It absorbs and retains heat very well. Which is what you want in a pizza or baking stone.
• Heat Resistant: It can withstand very high temperatures for a long period of time. Pizza ovens are known to use very high temperatures. Don’t be afraid of using a granite stone on the grill as well.
• Doesn’t Stain: Ceramic and clay pizza stones stain very quickly. After more than a handful of uses a pizza stone starts to have burnt stains on the surface. Which doesn’t look the greatest. Granite for one looks awesome to begin with. Compared to plain clay pizza stones. Granite will not stain as easily when baking pizza’s and can be cleaned very easily.
• Scratch Resistant: Granite has a high hardness level compared to other stones. Making it much tougher to scratch. You can scrap granite stones to clean without causing damage. Also most pizza stones don’t recommend to slice your pizza on the stone. Granite you shouldn’t worry about it, other than it can dull your blade. But it would be very hard to crack the granite.
• Longer Life Span: Because granite is such a durable stone. Having high heat resistance and hardness. The stone is less likely to accidentally break. A lot of pizza stones wear down after frequent handling. Granite will last a long longer than traditional pizza stones.

Granite Pizza Stone Cons:

• Takes Longer To Heat: Granite does take a little bit longer to come to heat than other stones. As the stone will absorb a lot of oven heat until it has reached temperature. Sort of like a heat sink, but in the long run this is a good quality.
• More Sticky: Polished granite can be a lot smoother than ceramic or other stone. This unfortunately can create a sticker surface for baking pizzas. Especially if the stone is cooler, so you may need to use extra cornmeal or flour. Pizza stones with a rougher surface do not cause sticking as much.
• More Expensive: Compared to other pizza stones made with clay or ceramic. Granite baking stones are usually more expensive.
• Heavier Material: Granite stones will be much heavier than other pizza stones. Which can be harder for a individual to move in and out of a oven, or take to a grill. Also could be damaging to a oven rack or grill grate overtime.
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Myth #1: Heat Will Crack Granite

The most common myth about granite is that heat can make it crack. This is true to an extent, but it has more to do with sudden drastic temperature changes.

Granite is extremely heat resistant when exposed to high temperatures. Granite can easily handle temperatures of 500°F – 1000°F. It is best to let the stone heat up gradually.

Thanks and regards

Hello Salmahoozi, here are some pros and cons to help you decide if you want to do this

https://cookingchops.com/granite-pizza-stone-pros-and-cons/

You want to make sure it is food grade though.