Super Seven Quartz
Quartz var. Melencite / Super Seven · Collector Mineral and Semi-Precious Gemstone
Crystal System
Trigonal system, typically forming prismatic crystals inside a massive quartz host
Mineral Group
Silicates (Subgroup: Tectosilicates)
Chemical Formula
SiO2 with inclusions of Goethite, Lepidocrocite, Cacoxenite, Rutile, Pyrite, and Smokey Quartz
Formation Process
Hydrothermal and pegmatitic formation over millions of years, combining the original growth conditions of multiple separate mineral species before being encapsulated within a growing quartz host
About This Crystal
This polished specimen showcases a dark, highly reflective, semi-transparent quartz matrix containing distinct internal phantom-like formations, golden-yellow crystalline flakes, and metallic inclusions such as goethite and lepidocrocite, exhibiting a vitreous luster.
Physical Characteristics
Color ranges from dark purple, smoky grey to translucent clear with golden, reddish-brown, and black internal inclusions; streak is white; hardness is 7 on the Mohs scale; conchoidal fracture; tenacity is brittle; specific gravity is approximately 2.65
Optical Properties
Uniaxial positive, doubly refractive with a refractive index of 1.544 to 1.553; exhibits strong internal transparency variation and notable needle-like or plate-like inclusions scattering light internally
Hardness & Durability
Origin Region
Found almost exclusively in the Espirito Santo region of Brazil (often referred to as Minas Gerais or Melody's Stone)
Hardness & Durability
Mohs hardness of 7, making it durable for general jewelry wear, though care must be taken with the polished surface to avoid scratching softer matrix inclusions exposed at the surface
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid harsh chemicals, ultrasonic cleaners, and prolonged direct sunlight to preserve any surface-reaching metallic inclusions
Rarity & Value
Rare and highly sought after by collectors; value is determined by the clarity of the quartz host, the abundance and visibility of all seven mineral components, and the size of the specimen
Special Characteristics
Notable for containing seven distinct minerals in one unified stone (Amethyst, Cacoxenite, Goethite, Lepidocrocite, Clear Quartz, Rutile, and Smokey Quartz), creating complex internal phantom structures and metallic flashes
Lore & History
Popularized in modern metaphysical circles by author Melody as 'Super Seven' or 'Sacred Seven.' Believed by practitioners to resonate with all chakras simultaneously, promoting spiritual elevation, grounding, and universal healing energy