What are these shiny black rocks? They almost look like glass. Bonus feline formation. : r/whatsthisrock

The black parts form little stripes and are fine-grained. Granite

Black flint looking rock. I thew it on the ground and a chip broke off

Shiny blackrock? : r/whatsthisrock

whats this rock? porous, shiny, black and white. found in Central

Shiny blackrock? : r/whatsthisrock

Anyone know what rock this is? Parts of it are dark grey/black and

Can anyone Identify this black glasslike rock for me please? : r

What are these shiny black rocks? They almost look like glass

How to tell the Difference between Black Onyx, Jet, Apache Tear

How to tell the Difference between Black Onyx, Jet, Apache Tear

What are these shiny black rocks? They almost look like glass