Help identify please

[Retiredlawyer]

This white mineral is washing out of the cliff face in chunks - it’s crumbly but some of the pieces are pretty solid.

 

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[Mythikalfairy74]

I can't identify it. But it is really neat looking. Just an admirer.

 

[Retiredlawyer]

My first thought was alien pods, should probably kill it with fire. But that might have been an overreaction.

 

[DDancer]

Looks like calcite thats eroding out of the base rock. An acid test would help.

 

[Retiredlawyer]

Thank you!