Tumble stone sizes generally range from 1 - 3cm
Bowenite Tumble Stone
Bowenite, also called Tangiwaite or Tangawaite, is the state mineral of Rhode Island. It is often incorrectly referred to as Jade. ... Used as a talisman or worn as an amulet, Bowenite protects from destructive forces by facilitating a protective energy shield that radiates in all directions. Bowenite is a dream stone.