Each tumbled and polished gemstone is approximately 12-24 mm.   Listing is for 1 tumble.
 
Green Aventurine properties include:
Boosts creativity
Increases motivation, leadership & decision making
Protects, soothes & calms emotions, aids relaxtion
Facilitate contact with Spirit guides
Known for being very lucky, helping to manifest prosperity & wealth
Excellent money stone
 
Chakra: Heart
Zodiac: Aries, Taurus, Leo, Virgo
Element: Earth, Water
Planet: Mercury, Venus