You can download PDF technical drawing of the quartz crystal and see the 3D rendering made on Fusion 360.
All Dimensions are whole numbers, integers except the distance from side to side, which is 10 times the square root of 3. The same lenght is the slant height — also called the apothem of the pyramid.
I feel and believe that this geometry is a perfect symmetrical division of 3 and 6 , hexagonal and tetrahedral patterns are aligned perfectly with this apex.
Already spoke with a factory in China and they can make each crystal for 20$ per pice. I might order 6 pieces first to check the quality and see the actual tolerance before making holders for them.
Again, the final idea is to have 24 crystals in circular formation with a minimum of 300 windings and pulse them with a monopolar pulse at the resonant frequency of the STA.
There are more things to share with you, but I will do it in a separate post, one by one