Nephrite Jade - Worry Stone Quality:Standard The distinctive banding forms as

The distinctive banding forms as copper-rich fluids deposit layers over time

5mmApproximate Weight of 1 Piece: 2g

40 Micron - Lapping - 320 grit

White: Fine (1400/5000 Grit)

The geological conditions of the Panjsher Valley contribute to the formation of these emeralds

Nephrite Jade - Worry Stone Quality:Standard The distinctive banding forms asMined from: British Columbia, Canada Description: Nephrite jade is a tough, fibrous variety of the amphibole mineral actinolite, composed primarily of calcium, magnesium, and iron silicate. Its interlocking crystal structure gives it exceptional toughnessmaking it one of the most durable natural materials known. Nephrite forms in metamorphic environments where calcium rich rocks are altered by hydrothermal fluids, producing the familiar shades of