Minerals and Metals in Ancient India v2.c47.66

v2.c47.66

*Grossularite* : Essonite or *Hessonite*. Cinnamon-stone. These are Calcium-Aluminium garnets with some replacements by FeII, FeIII, Cr. Variable colour. The name grossularite comes from gooseberry (pale green). Hessonite is cinnamon-coloured. Available in Sri Lanka it has a variety called *Hyacinth* (inferior) less in hardness than true hyacinth, coloured yellow to yellowish-red. A particular variety of zircon is also called Hyacinth.