Green Vitriol
Green vitriol is an iron sulfate that has a few useful properties. In its solid form it appears as green granulated crystal. It is soluble in water, and thus may be used in water-based elixirs and potions. Excess amounts are toxic.
Uses
Alchemical
Green vitriol was involved in magic resistance. Biota predisposed to magic resistance, such as Oria could consume small amounts of green vitriol to enhance this effect.
Botanical
Green vitriol enhances plant growth in small amounts, and can be added to irrigation systems to distribute to a large crop area.
Medicinal
Green vitriol can be used to treat anemia.