Gemologist Guide to Identifying Tanzanite (Zoisite)
Tanzanite is a variety of zoisites that can be violet, purple, and blue. The different shades of purple and blue you see in tanzanite are due to its strong pleochroism. When valuing tanzanite you’ll learn the most highly saturated stones with a rich blue color are the most sought-after. These beautiful crystals are sourced from […]
Gemologist Guide to Identifying Fluorite
Fluorite is a popular mineral among rock hounds and crystal collectors because its very affordable and crystal specimens are a real pleasure to look at. It comes in a spectrum of colors, and crystal structures, and you can find banding as well. Fluorite will fluoresce under UV light which adds to its collectability. How […]