Pollucite (7.9 x 8.2 x 4.5 cm)

Description

Formula: (Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O

Series: Analcim-pollucite series

System: Isometric

Locality: Paprok (Papruk mine), Kamdesh, Nuristan Province, Afghanistan

Habit: Euhedral crystal

Color: Transparent to pale white

Luster: Dim silky luster or vitreous on cleavages

Weight: 354 g

Dimensions: 7.9 x 8.2 x 4.5 cm