metamorphic
Blue Quartzite (Dyed)
Metamorphosed Quartz-rich Sandstone (SiO2 with organic dye)
Hardness: 7 (Mohs); Color: Natural white/grey base with artificially infused vibrant blue; Luster: Vitreous to dull; Structure: Granular/crystalline; Texture: Coarse-grained with visible quartz crystals and dark inclusions.
- Hardness
- 7 (Mohs)
- Luster
- Vitreous to dull
Identified More metamorphic →
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Physical properties
Hardness: 7 (Mohs); Color: Natural white/grey base with artificially infused vibrant blue; Luster: Vitreous to dull; Structure: Granular/crystalline; Texture: Coarse-grained with visible quartz crystals and dark inclusions.
Formation & geological history
Formed from the metamorphism of quartz sandstone under heat and pressure, typically in orogenic belts. This specific specimen has undergone a post-extraction dyeing process to enhance its visual appeal.
Uses & applications
Primarily used as a decorative stone, garden ornament, aquarium rock, or in low-cost metaphysical crystal collections.
Geological facts
While quartzite is naturally found in shades of white, pink, or green, this specific electric blue is the result of applying dyes into the microscopic pores and fractures of the rock. Quartzite is one of the toughest building materials known.
Field identification & locations
Identify by looking for concentrations of color in cracks and grain boundaries (a sign of dyeing). Common as a decorative boulder or crushed stone. Real blue minerals like Dumortierite or Azurite have different crystalline habits.
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