Pure zircon is colorless, but most zircon stones are brown.
It has a hardness of 7.5 and a specific gravity of 3.90-4.71. Zoisite was named for the Slovenian mineral collector Baron Sigismund Zois von Edelstein, who financed the expedition that discovered Zoisite. Search the Web with our sponsor, Overture. Without our visitors' support, Enchanted Learning would soon be off-line.