What kind of pearl is this?

[Bebe2014]

Hi newbie here, does anyone know anything about this pearl? My husband had steamed top neck clams in south new jersey and this purplish looking "pearl" was found. Wondering if it able to be made into a piece of jewelry. Any help is appreciated.

 

[Bebe2014]

Anyone able to help?

Anyone able to help?

Hi newbie here, does anyone know anything about this pearl? My husband had steamed top neck clams in south new jersey and this purplish looking "pearl" was found. Wondering if it able to be made into a piece of jewelry. Any help is appreciated.View attachment 30663

Really curious if anyone has an idea.