Lapis Lazuli is a beautiful royal blue stone. Its great for third eye activation and seeing through the minds eye into the esoteric realms; meaning up into the higher authority chakras which would be 8 through 16.
The pyrite that is in the striations means that these particular stones come from Afghanistan. The ones that do not have the pyrite striations are from Montana, Wyoming, or Washington. The pyrite component is great for healing your aura and any tears that you have in your energetic boundaries. Simply meditate with the intention of repairing the tear specific to the fabric of time you are looking to heal. Utilize your auric field, rainbow body of light, or even your merkabah to speak your truth with the Lapis in your meditation and all will be well. Its element is water and storm its numerology is 8.