tiles


Note:  Do not rely on this information. It is very old.

Gahnite

Gahnite consists of an aluminate of zinc, which crystallises in the regular system. usually in octahedra, resembling the spinels (q.v.). It varies in colour from green to blue-black or brown; has a specific gravity of 7.8, and hardness 4.5. It frequently contains, besides its chief constituents, iron or manganese and sometimes magnesium. It occurs in a few localities in Sweden, Bavaria, and America, but not very plentifully.

“At the least whosoever has the spirit of Christ, shall find that spirit in him striving against that which is contrary, and by little and little gaining ground. Where there is no conflict, there is no spirit of Christ at all.”
–Richard Sibbes, Description of Christ