Rosaline

Rosaline, also known as unionite, thulite, or pink zoisite, was a pink stone found in very large quantities (usually cut in one pound (two kilogram) blocks for trading), or in crystals exhibiting trichroism (three colors in the gem, each viewed from a different angle), often purple, blue, and red, or purple, green, and red).

Description
The opaque pink variety of this ornamental stone was soft and would be tumbled or cut cabochon while the harder crystal form would be faceted by a lapidarist. Large crystals brought higher prices when fashions turned to brooches and rings adorned with rosaline. A typical stone had a base value of 10 gp.