Natural marble-like crystallized glass, natural marble-like crystallized glass article and a method of manufacturing the same.

摘要

PROBLEM TO BE SOLVED: To obtain inexpensive natural marble-like crystallized glass and a natural marble-like crystallized glass article by a production method of the natural marble-like crystallized glass where raw material cost and melting cost are reduced, firing can be performed at a low temperature and surface accuracy after firing can be enhanced.;SOLUTION: The natural marble-like crystallized glass is characterized by including 45 mass% or more SiO₂, 7.5 mass% or more CaO, 0.05 mass% or more ZnO and 0.1 mass% or more MgO+SrO+ZrO₂ as a composition and by that a β-wollastonite crystal is deposited as a main crystal.;COPYRIGHT: (C)2012,JPO&INPIT