rock found on beach in the uk SOLVED (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by Cruse2382@lemmy.world to c/whatisthisthing@lemmy.world

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Son found this on the beach and is adamant its something special.

About the size of a lump of coal with glass like speckals.

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[-] Cow_says_moo@lemmy.world 13 points 1 year ago

It's likely to be gabbro, a very common type of rock I'm afraid. Doesn't mean it can't be special to him!

https://geology.com/rocks/gabbro.shtml

[-] Miarolitic@lemmy.world 8 points 1 year ago

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

this post was submitted on 31 Jul 2023

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