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

UPDATE* Big shiny metallic rock is strongly attracted to magnets

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

Help with identification please. Outside is black with crystal

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

What is this black material on the surface of this stone? Almost

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

Shiny black inclusions? : r/whatsthisrock

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

Found at the beach. Slightly heavy, black shiny rock! What is it

Shiny black rock. : r/whatsthisrock

What are these shiny black rocks I keep finding randomly around my

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