I need help pleas

[Simsam2019]

Hi i need your help pleas.
I Found this in the ground.i Think it wars a stone. But the detector in its com in whit 94
Its not rosting or Oxidation, not mangetic and for this Size are heave 384 g.
So anybody can help me😱
Thanks

 

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[EKG]

Silver or platinum nugget my guess

 

[DDancer]

A streak test would help. It kinda looks like galena but in other pic's it kinda looks like a pyrite. Galena will leave a dull silver streak with little chunky bits, silver a bright silver steak and pyrite a brown streak typically.