1.5kg Rare Brazilian Fire Quartz Sphere – 100mm – Internal Rainbow & Vivid Hematite Description This is an exceptional, large-scale sphere of authentic Brazilian Fire Quartz (Hematoid Quartz). Weighing over 1.5kg and measuring a perfectly balanced 100mm, this specimen is a premier example of iron-oxide inclusions combined with rare natural optical phenomena. Mineralogical & Aesthetic Highlights: • Spectral Rainbow Inclusion: A notable feature of this sphere is a large, vibrant natural rainbow deep within the quartz matrix. This optical prism effect occurs naturally and creates a stunning flash of colour that shifts as the sphere is rotated. • Vivid Red Inclusions: The interior is filled with dense, multi-layered plumes of Hematite and Lepidocrocite. These create a "fire" effect that appears to dance against the backdrop of the internal rainbow. • Translucency & Depth: The host quartz is remarkably clear, allowing light to travel through the 100mm diameter to illuminate the 3D "landscape" of the inclusions. • Gallery Scale: At 10cm in diameter, this sphere has significant presence and weight, making it a definitive statement piece for professional mineral collections. Geological Significance: • Natural Prism Formation: The internal rainbow is a result of microscopic "healing" fissures within the crystal lattice, confirming the stone is natural and untreated. • Authenticity: 100% natural and earth-mined. The vibrant scarlet and crimson hues originate from the iron-rich soil of the Minas Gerais region, Brazil. Technical Specifications • Mineral: Fire Quartz (Hematoid Quartz) • Weight: 1582g • Diameter: 100mm • Origin: Minas Gerais, Brazil • Condition: Pristine; professional high-gloss gallery polish.