Green Aventurine 1x2mm Square Rondelle - 15-16 Inch Stone Type_Tanzanite a variety of Jasper containing

a variety of Jasper containing variably colored spherical patterns

The different colored zones in the stone result from different oxidation states of iron

Shattuckite is a pseudomorph

this opal variety is characterized by their dark base tone

It is a variety of the silicate Spodumene

Green Aventurine 1x2mm Square Rondelle - 15-16 Inch Stone Type_Tanzanite a variety of Jasper containingGreen Aventurine is a green translucent quartz with glimmering metallic inclusions. Green is the most common color for Aventurine, but it can also occur as orange, brown, yellow, blue or gray. The color of Green Aventurine comes from Fushite particles within the quartz. It is known as the Stone of Opportunity, and thought to be the luckiest of all crystals.