Large, Sparkly Carborundum Specimen

Rainbow Carborundum (Silicon Carbide) Crystal Cluster | 15 cm | 1,330 g

This spectacular rainbow carborundum specimen features an impressive cluster of sharply defined, metallic-looking crystals with brilliant iridescent reflections. Its dramatic, angular formations shimmer with flashes of electric blue, violet, emerald green, gold, and copper, creating a dazzling display that changes with the lighting and viewing angle.

The specimen features intricate, blade-like crystals, geometric growth patterns, and highly reflective surfaces. Weighing nearly 3 pounds, this substantial piece makes a striking addition to any mineral collection or display.

Carborundum, also known as silicon carbide (SiC), is a synthetic crystalline material produced at extremely high temperatures. Its remarkable rainbow coloration results from thin surface layers that create beautiful optical interference effects.

Specimen Details:

• Material: Carborundum (Synthetic Silicon Carbide)

• Origin: Unknown, possibly China

• Dimensions: 15 × 13 × 9 cm (5.91" × 5.12" × 3.54")

• Weight: 1,330 g (2.93 lbs)

• Color: Metallic black with brilliant rainbow iridescence

• Features: Sharp, angular crystals with intricate geometric formations

• Mohs Hardness: 9–9.5

A stunning collector's specimen showcasing extraordinary crystal formations and vibrant, ever-changing rainbow reflections.