The place you found the rock was once underwater.
because most intrusive igneous rock are found underground and diorite is found under the earth.
Tell the cook or server or simply throw the rock out and say nothng.
you want to see him again, seriously, you tell him he looks like a warm and wonderful guyyou want to get rid of him, tell him you are a lesbianyou want to sleep with him, tell him he is hot and makes you horny
A meteorite often has a mixture of isotopes that is quite different from that found on Earth.
Nobody can tell you YOUR impressions. They're yours.
you'll probably get the wrong impression.
If you find a piece of granite in an area where the local bedrock is sandstone, limestone or some other rock you could deduce that the granite was not local to the area but was probably either a glacial eratic or had been moved there by people. the same would apply to any rock which wasn't local to the area in which it was found.
Bite it. Real gold is heavy but malleable, and when you bite it, it will leave an impression.
Talk about yourself. Hobbies, lifestyle... Chance to make an impression.
His biography doesn't tell us that information. The impression I have always had was he was rather small. No cameras existed in his time so this impression must have come from something I read.
You could tell an older rock from a younger rock by looking at it because the older rock isochron would have a steeper slope.
A rock is made of different minerals.