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Synonyms: Saphir Blue, Saphire Blue, Zephyr Blau
This stone internationally may be nominated as a granite however in the area of application of the European Standard (EN) this stone must be nominated as cordieritefel.
A very coarse-grained, blue-brown cordieritefels with big, brown-red feldspar phenocrysts and blue-grey quartz.
Cordieritefel: A phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar (90-100%), and a minimal mafic component (0-10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most commonly present.