What is the ideal diamond particle shape?

The ideal diamond particle shape is tetrahedron shape of equal area crystal. Because this particle has a high strength and durable cutting performance, and other shapes (such as needle and sheet) of the particle, the embedding performance is poor, easy to produce fragmentation and fracture, not conducive to grinding. As shown in the picture:

This kind of particle is sharp, not easy to flake, grinding effect is good. In practice, the ideal particle shape is rare, starting from the grinding effect, it is hoped that the particle of the abrasive is full, strong and approximately equal volume shape, and there is a sharp Angle and acute Angle shape. In the same batch of diamond particles, if you can have 50% of the ideal equal area particles, even if it is very good, but in practice, it is often not achieved, but also need to be separated several times