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


Helvine, or Helvite, a mineral which forms lustrous regular crystals of a yellow or green colour, specific gravity 3-8, hardness 6. It consists of the silicates of iron, manganese, and beryllium with a sulphide of manganese, and is interesting both as a compound of the rare element beryllium, and as the only known natural compound of a silicate and a sulphide.

“What good will it be for a man if he gains the whole world, yet forfeits his soul? Or what can a man give in exchange for his soul?”
Matthew 16:26