HI to everyone!:hello:
I've found this rock in KAREKARE beach near Auckland (West coast of North island- New Zealand).
Light grey color with several dark crystals included , very fractured (like clay), quite hard consistency, scratching with a metal key it shows very shallow marks...and it...
Hi
I`m located in Scotland, recently I found a lot of volcanic glass, outside the Edinburgh area,
(there was use to volcano there)
was wondering are these stones are some kind of volcanic glass or just melted something..
Thanks a lot
1 bear