13 Carats Afghan Ruby Crystal on Calcite - Afghanistan

Fine Mineral Specimen - Natural Ruby Crystal on Calcite Matrix

This is 13-carat ruby specimen from Afghanistan,a natural corundum crystallization. This rare piece showcases the remarkable beauty of ruby formation in its natural metamorphic environment.

Category Classification:

• Category: Fine Mineral Specimens
• Rarity: Rare
• Condition: Graded
• Crystal System: Trigonal (hexagonal)
• Rock Formation: Metamorphic
• Birthstone: July

Specimen Highlights:

• Natural Ruby Crystal - Authentic corundum with characteristic trigonal crystal structure
• Calcite Matrix - Ruby preserved in its natural host rock, demonstrating geological context
• Afghan Provenance - Sourced from Afghanistan's renowned marble-hosted ruby deposits
• Museum-Quality - Graded specimen suitable for serious collectors and educational institutions
• Rare Classification - Limited availability makes this a valuable addition to any mineral collection

Geological Significance:

This specimen exemplifies classic metamorphic ruby formation in calcite/marble matrix. The trigonal crystal system is characteristic of corundum minerals, and the Afghan origin indicates formation under high-temperature, high-pressure metamorphic conditions. As a July birthstone, ruby holds both gemological and cultural significance.

Specimen Details:

• Weight: 13 carats (0.3 kg total specimen)
• Dimensions: 22 x 15 x 8 mm
• Origin: Afghanistan
• SKU: RUBY-13

Perfect For:

• Mineral collectors seeking rare, graded specimens
• Geologists and gemology students studying corundum formation
• Museum displays and educational collections
• July birthstone enthusiasts
• Investors in rare natural specimens

This fine mineral specimen combines aesthetic appeal with scientific value, offering a window into the metamorphic processes that create one of nature's most prized gemstones.