These glass jars are filled with very small fragments of Black Onyx.
 
The approximate dimensions of the glass portion of the jars are:
MD: 2 (L) x 0.8 (W) inch
LG: 2.5 (L) x 0.8 (W) inch
 
Excerpts from Book 3 (CREATION: ITS HISTORY, EXPLOSIVE EVOLUTION, AND ET ARRIVALS ON EARTH. Available on Amazon):
(The Auric Expressions of Different Frequencies) Dark Black – Here is an auric expression of a very long wave pulse that is very shallow and has very smoother edges. It’s strong and can be very aggressive, but doesn’t have to be.It’s relative to extreme anger or condensing one’s personal power. It’s found in Black Onyx.
Black Onyx: Solidifies your energy, compresses it, makes you stronger especially in the core.
...many speakers today are already aware of the benefits of Lapis Lazuli for assisting us in talking to others whether in person or on the internet. Lapis not only feeds the Pineal Gland helpful energy, it also has the energy of continuous fortitude in it. Black Onyx has the strongest personal power condensing properties with its Black Aura so, as you might guess, Black Onyx and Lapis together make for even stronger speaking engagements.
(Protection) Dragon Stone Jasper & Black Onyx – Dragon Stone Jasper pulls more of your energy into your body while Black Onyx condenses it.