13.63 grams Vivid Green Emerald Crystals from Swat Pakistan

This is an emerald-in-matrix specimen from Swat, Pakistan, showing classic hexagonal emerald crystals embedded in their host rock. The specimen displays:

Crystal Structure & Morphology:

• Multiple well-formed hexagonal emerald crystals (beryl variety) exhibiting the characteristic six-sided prismatic habit
• Crystal faces show vitreous luster with visible terminations
• Size: 25 x 22 x 20 mm, weighing 13.63 grams

Color & Optical Properties:

• Vivid green coloration caused by chromium and vanadium trace elements
• Color zoning visible in the crystals, indicating variable growth conditions
• Opaque clarity typical of matrix specimens, preserving geological context

Matrix Composition:

• Host rock appears to be mica schist with visible biotite (bronze/copper colored flakes) and quartz
• The association indicates metamorphic origin, consistent with Swat Valley's geological setting
• Matrix preservation provides educational value showing emerald's natural formation environment

Geological Significance:

• Swat Valley emeralds form in metamorphic rocks through hydrothermal processes
• The specimen represents Pakistan's world-renowned emerald deposits, rivaling Colombian sources
• Ideal for teaching metamorphic petrology, crystal growth, and beryl group mineralogy

Collector & Academic Value:

• Rare matrix specimen preserving in-situ crystal formation
• Educational reference for gemology students studying beryl varieties
• Demonstrates the relationship between emerald formation and host rock metamorphism