| 1. | Both names , zoisite and tanzanite , have become interchangeable , but there are other less available types of zoisite , including thulite , a rose colored variety . most often , zoisite is usually gray although it can be brownish , greenish , or bluish
黝帘石呈红褐色、深紫色，透明、块体大，经过加热处理变成象蓝宝石一样的靛蓝色。颜色不均，有明显的三色性：深蓝、紫红、黄绿色。 |
