Approx 52mm in size
A blue banded calcite from Argentina,  it is sometimes has a few other names: Blue Argentinian Calcite, Argentinian Blue Onyx, and Argentinian Aquamarine Onyx.
Lemurian Aquatine Calcite arrived on the scene several years ago and was trademarked by was trademarked in 2009 by Robert Simmons of Heaven and Earth LLC. 

Aquatine Calcite is typically pale to deep blue/green in colour and resonates with the heart, throat, third eye and crown chakra. 
It soothes and replenishes the bodies energy centres and softens and nourishes the etheric body.
It is also said to enhance intuition, telepathy helps with the telepathic communication from your heart.

It also nourishes the emotional body and works very powerfully against anxiety, worry and concerns for the future.  
Allows one to attune to Lemuria