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I bought this fossil in a store of rocks and fossils. I dont know anything about this type of Ammonite or even the rock where is. The seller told me is from Perú.

Can anyone help identify this black rock. Originally thought it was coal but it’s very shiny. Found in Monmouth county, NJ. Size is 2 1/2” x 1 1/2” x 1” Thanks

Can someone help me identify this rock? It has tiny green, so.e blue and purple stones Thank you in advance

This is not a fossil, but I imagine someone on here can tell me what type of rock it is. The Back Story You know me. I’ve always got a story. One summer when I was 11 we were traveling with my dad who was working for the National Forest planting trees where forest fires had decimated whole mountains in Colorado. My grandmother from Florida came and traveled with us for 2 weeks. She was my favorite grandmother and we were very close. We were kindred spirits. I rarely got to see her, but we had a strong connection. She was a die hard rockhound from Florida. Not many rocks there. So she was like a kid in a candy store and she’d go hog wild collecting rocks. She’d bring an extra suitcase just for the rocks. Anyway, one day we were traveling through Colorado and pulled over out in the country by a meadow by a river. The water was low and slow and the river was wide with lots of rocks in the bed. My grandmother and I took a walk in the river bed and collected a number of cool rocks. I normally picked rocks that could fit in my hand. I remember those rocks being so cool. They were black, very fine grained and smooth from being tumbled in the river. I called them snowflake rocks. 39 years later I have no clue where those rocks are now. But back in June my younger brother texted me a pic of a rock asking me what it was. Then he told me he was in Florida visiting a cousin who had a bunch of rocks from our grandmother. Our cousin was going to throw them away. When he told me they were my grandmother’s that day came back to memory. It was a sweet memory of my grandmother who had passed away 24 yrs ago. My brother asked me if I’d like this particular rock. He told me he’d brink it back to Arkansas and I could get it when I came to visit next. I visited in July. This is the rock. Does this particular type of rock have a name or is it lumped in with a group. It is very heavy and very hard (it’s a rock, what can I say?). I think the white rock is harder. The white inclusions are quite hard. The band at the bottom is a different material, which I believe is a form of chalcedony.

I keep finding these bulky rocks with weird holes. Could it be something other than lava rock? 3"x4" Westchester, NY