volcanic

  1. INTERESTING FLOATING ROCK (NOT PUMICE).. HELP PLEASE! THX! :)

    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...

  2. strange lava stones?

    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
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