Monoclinic, very close to Epidote.
G = 3·19-3·29. H = 5. Brownish green; weakly pleochroic.
Islands of the Langesund Fiord, Norway.
Kainosite (Cenosite).
CaY₂(SiO₃)₄,CaCO₃,2H₂O, where Y = Yttrium metals. Yttr = 30-37%.
Uncertain; pseudo-hexagonal.
G = 3·38-3·41. H = 5-6. Yellowish brown.
Hitterö and province of Nordmark, Norway.
Keilhauite (Yttrotitanite).
An isomorphous mixture of [Titanite] (q.v.) with (E,Al,Fe)SiO₅. E₂O₃ = 5-12; TiO₂ = 26-30%.