Son found this on the beach and is adamant its something special.
About the size of a lump of coal with glass like speckals.
Son found this on the beach and is adamant its something special.
About the size of a lump of coal with glass like speckals.
Yip definitely gabbro.
OP, the light/ white mineral is plagioclase the dark almost black mineral is pyroxene.
If you look at it in sunlight anything with a dark green colour is probably Olivine