Blue Aventurine Tumble Stone, you will get one intuitively chosen for you based on the energy.
Healing Properties of Blue Aventurine.
Blue Aventurine is great for your Throat Chakra, helping to calm and soothe emotions and communication.  It can be particularly helpful for people with autism.  I have personally witnessed many times how well it can soothe autistic children when they have been over stimulated in my shop.
Take peace of mind in knowing that when you purchase from me, Crystal Cath not a single penny will be reinvested into the active mining of crystals.  Helping to preserve the planet, whilst still receiving the benefits and healing energy that crystals have to offer.