NikNZ

Thanks Kodiak, yes they seem to be concentrated on one area mainly.

Hello, i am by no means a geologist but i am trying to learn about different minerals and compositions of rocks. There is an area i am working in New Zealand at the top of a hill where i am finding a lot of Brown (Iron?) coloured rocks and inside is a really dark grey/blue with shiny particles. Im an amateur prospector and learning every day! Any suggestions greatly appreciated.