When I observe this piece, all I see is 'motherhood'. I feel this pendant symbolizes motherhood in a literal and figurative sense, but also as the mother of the earth - Gaia - the mother of all things.
 
The green Aventurine is known to be a good healing stone for conception, to bring forth new life. The colour resonates with the Heart chakra, so with that in mind, one could also interpret this piece as a form of motherly or matriarchal support. As women, we need to offer that to ourselves and our fellow sisters, when our own earth mothers are unavailable to offer the support we most crave and need.
 
One of my favourites, Labradorite, is known to be a neutralizing stone, so very good for grounding and keeping calm during stressful or challenging circumstances. Personally, I find this stone to be a wonderful aid in creativity and creation - which also sings beautifully to the Aventurine and its conceptive properties. 
 
These two stones dance wonderfully together.
 
 
 
Reference: The New Crystal Bible by Cassandra Eason