Orca Agate Heart

Many people believe that this is a powerful stone that dates back to ancient times and was used by priests as a talisman for protection from evil spirits. It also has been said that it was around during the time of Atlantis, but it cannot be confirmed if it was actually used back then or just discovered.
orca agate throat chakras

According to ancient texts, this powerful stone resonates with the throat chakra and was used as a tool for peace, healing, and meditation. Healers would use it to balance energies within their body and cleanse themselves spiritually. Orca stone was also thought to be extremely powerful because they hold all seven chakras within its layers:
Crown Chakra
Third Eye Chakra
Throat Chakra
Solar Plexus Chakra
Sacral Chakra
Root Chakra

There's no way of knowing if this is 100% true as not much information on this subject has survived, but it seems like an interesting fact nonetheless.
 
What Are The Healing Properties of Orca Agate? 
Orca Stone is a stone of protection, deeply connected to the ocean. It enhances stability and helps you stay grounded in who you are, even during very difficult challenges. Orca stone provides empowerment from within and teaches how to become better at controlling the outcome of your life by handling any problem that comes your way with confidence and skill, and assists with organizational skills, housekeeping, cleaning, repairing, and refurbishing anything; cleaning up the clutter!
orca stone healing properties
This forgiveness stone will also help provide clarity when making decisions, promote a gentle inner peace, give you the ability to acknowledge hidden self truths or reveal your inner truth, and releases you of self-doubt.
In terms of self-doubt, this will help you overcome your self-doubt by giving you the courage to forgive yourself and let go of negative emotions like guilt, shame, anger, fear, blame etc.
Other reported properties include:
Removing self-loathing
Improving self-communication
Helping connect to your inner psyche
And it can help heal deep internal emotional wounds