Actinograph
an instrument for recording the variations of chemical influence of the solar rays and of other radiations.
ACTINOLITE (Greek aktis, genit. aktinos a ray, and lithos a stone. The translation of the German strahlstein= radiated stone), a variety of amphibole.
It is the actinote of Haüy. Its affinity and composition are indicated by Dara's compound name for it-magnesia-limeiron amphibole. It is bright green, or grayish-green, the green color being imparted by the iron it contains.