29a a bright green variety of chalcedony used as a gemstone ???S?A (6) 13a unit of weight used for diamonds .... ?O?N? (5) 26d part of animals head between the ears P??? (4) thanks
Yes, I thought it was carat too, but that doesn't fit in with Fats Domino.
Carat is a general term for precious stone weght but a point refers specifically to diamond weight and is about 2 mg.