Ruby in Zoisite

Scientific Name:

Group: Silicates – orthorhombic

Chemical composition: Ca2Al3(SiO4)3(OH)

Colors: Green, rose, red, blue, violet, brown

Hardness: 6.5 to 7

Principal Sources: Worldwide

Special Notes: Ruby in zoisite is also known as anyolite. Zoisite, the same mineral as tanzanite, provides an earthy green and black color while ruby lends pink and red highlights. Named in honor of the discoverer, the Austrian natural scientist Baron Siegmund von Zoi