Clary Sage Absolute is produced from Clary Sage Concrète. The concrète is produced from the clary sage plant by extraction with petroleum ether. As a rule, either flowering tops or tops whose flowers have withered and produced seed are used for extraction.
Clary Sage Absolute is … a green, solid or paste-like, and may separate crystals on prolonged storage under uneven temperature conditions. The crystals are presumably Sclareol, a solid, odorless, non-distillable terpenealcohol which contributes strongly to the fixative effect of the extracted products from clary sage.
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 657).