Emerald Pendant / new- 8.14 g - (1)

Emerald pendant / new Set in 925 sterling silver Weight: 8.14 g / 40.7 ct (weighed without the leather cord) 27.2 mm x 17.6 mm x 8.7 mm New and unworn Includes leather cord Emerald is a dark to light green variety of the silicate mineral beryl with the chemical composition Al2Be3[Si6O18]. The color of emerald, whose range spans from a dark bluish-green to a pale yellow-green, is caused by small trace amounts of chromium (Cr3+) and vanadium ions (V3+). Like the pure mineral beryl, emerald crystallizes in a hexagonal system and typically forms six-sided, prism-like to columnar crystals with a glassy luster on the surfaces. Its Mohs hardness of 7.5 to 8 is comparable to that of beryl. Shipping as insured registered mail

估價:$3.4

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