Cool “piggyback” rock...Any ideas what, exactly?

[Detector mom]

Found on bay beach in Provincetown, MA. Interesting mauve clump with matching veins throughout its host...

Anyone know what it is?

 

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[desertexplorer]

Fascinating stone, is the dark part magnetic?

 

[Detector mom]

Checking...

 

[Doubter in MD]

A rock with dirty, hardened gum or possibly tar stuck to it?

The above guess was brought to you by the president of the Stupid Guess Association.

 

[Detector mom]

The purple-pink thing is definitely rock. Not soft or gummy. Very strange.