My favourite of all markings, little triangles upon the surface of a crystal, record keepers spark exceptional remembrance as they allow one an express connection to the akashic records.
Akashic records are held in the crystalline grids of the earth, our DNA, our Higher Self, and the crystalline temple teaching realms.
Recordkeeper triangles are usually raised slightly on the faces, at the terminations.
Indented and downward-facing recorded keepers are rarer and they are called trigons. These are a more intense form of the same thing.