yugawaralite

yugawaralite

[‚yü·gə′wär·ə‚līt]
(mineralogy)
CaAl2Si6O16·4H2O A zeolite mineral consisting of hydrous calcium aluminum silicate.
References in periodicals archive ?
There follows the book's longest chapter, "Less Common Species," which offers nearly a hundred pages of short accounts of minerals ranging from adamite and algodonite (a copper arsenide) through weloganite, whewellite, wulfenite, xonotlite, yugawaralite, zincite, zunyite (and many others even within the sequence WXYZ)--all considered in light of their potentials as ornamental materials.
The yugawaralite crystals are not quite the equals of the recent ones from India, but are probably second best in the world: very sharp, transparent and colorless toothy blades to 2 cm sitting up on a white quartzite matrix.
Hori also reported that transparent yugawaralite crystals up to 1 cm have been found at the Kawazu zeolite location, a coastal outcropping on the Izu peninsula, near Kawazu, Shizoka prefecture.