gemstone

Mystic Topaz (Treated Quartz or Topaz)

Silicate Mineral (SiO2 or Al2SiO4(F,OH)2) with Titanium coating

Hardness: 7-8 (Mohs); Color: Iridescent multihued (rainbow); Luster: Vitreous; Crystal structure: Trigonal or Orthorhombic; Specific gravity: 2.65-3.5

Hardness: 7-8 (Mohs)
Color: Iridescent multihued (rainbow)
Luster: Vitreous

Identified July 20, 2026More gemstone →

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Physical properties

Hardness: 7-8 (Mohs); Color: Iridescent multihued (rainbow); Luster: Vitreous; Crystal structure: Trigonal or Orthorhombic; Specific gravity: 2.65-3.5

Formation & geological history

The base mineral forms in igneous pegmatites or metamorphic rocks. The 'mystic' effect is created through a modern Thin Film Deposition (TFD) process where a layer of titanium is bonded to the pavilion.

Uses & applications

Primarily used in decorative jewelry like rings and pendants due to its unique optical properties.

Geological facts

The 'Mystic' effect is not natural; it was first developed by Azotic Coating Inc. in the late 1990s. While beautiful, the coating can be scratched or worn off over time.

Field identification & locations

Identify by the distinct 'oil-on-water' rainbow shimmer. It is a popular commercial gemstone found in global markets rather than sourced as-is from the field.

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