🔎 UNIDENTIFIED What in the world Rock.

[JonnyRockIt]

What in the world is this rock? Basalt like but black shiny shards throughout. Found on a beach in Maine. 5”Lx3.5”Wx1.25”D

 

Amazon Forum Fav 👍

A History of Mining on the Kenai Peninsula, Alaska - Grab it through Amazon!

[Red-Coat]

Welcome to Tnet.

Neat specimen.

It's what's called a 'porphyry'... an igneous or volcanic rock with a fine-grained matrix and distinct phenocrysts of larger size.. I would say it's likely in the basalt family spectrum, but from the colouration I would guess it's an andesite with phenocrysts of amphibole (hornblende).

 

[tamrock]

Perfect ID, RC. Keep up the good work and Rock On !!!

 

[JonnyRockIt]

Thank you for your identification. That was one that came about using Google Lens but nothing resembled this formation. You rock, so thank you!