Chrysoprase
7Hardness (Mohs)
SiO₂:NiChemistry
2Known origins & mines
The most valued chalcedony, apple-green from nickel silicates. Queensland's Marlborough fields supplied Frederick the Great's Sanssouci decor; Poland's Szklary and Tanzania's Haneti add modern sources.
Known origins & mines
Marlborough Chrysoprase Fields · Australia
World's finest apple-green chrysoprase from nickel laterite near Marlborough — Frederick the Great decorated Sanssouci with Queensland mater…
Szklary Chrysoprase Quarries · Poland
European classic: Silesian chrysoprase quarried since 14th century decorated Prague's Wenceslas Chapel with medieval masterworks.…