71°59'05.42"S 168°39'33.66"E
>>42577638Basalt. Pretty sure that is basalt.
>>42577763This one is nearby -71.983541, 168.647116 which is what basalt would actually look like. OP's pic looks kind of different, it's more round and has distinct lines in it.
>>42578510meant to say: left is from OP's coordinates, and right is nearby and what probably a basalt would look like