Mystic Topaz

Topaz

By Tim Matthews, JD, FGA, GG, DGA,
CEO and President of JTV (retired)
Published: June 2014
Mystic Topaz Polished

General Information

Common Name
Mystic Topaz
Species
Topaz
Transparency
Transparent
Dispersion
Strength: Weak Fire Value: 0.014
Refractive Index
1.609-1.617
Birefringence
0.008-0.01
Optic Character
Biaxial
Optic Sign
Positive
Polariscope Reaction
Doubly Refractive (DR)
Fluorescence
SWUV: Inert
LWUV: Inert
Pleochroism
Unobservable
Hardness
8
Specific Gravity
3.490-3.570 Typical:3.530
Toughness
Good
Inclusions
Mystic topaz is a type II clarity stone. Stones have a coating on the pavilion or crown of stone There might scratches of treated surface of the stone that show colorless areas underneath. Stones sometimes contain long tube-like cavities containing liquid, healed fractures and areas that look like they are starting to cleave. Stones might include 2-phase and 3-phase inclusions some of which contain more than one liquid that have not been mixed. Surface treated green topaz is blue green in appearance and looks spotty there might also be blue color concentrations in surface reaching fractures.
Luster
Vitreous
Stability
Fair
Fracture
Conchoidal
Cleavage
Perfect, in one direction
Chemical Name
aluminium silicate fluoride hydroxide plus titanium coating
Chemical Formula
Al2(F,OH)2SiO4 + Ti coating
Crystal System
Orthorhombic
Chemistry Classification
Silicate

Mystic Topaz Colors

  • Bi-color Mystic Topaz
    Bi-color
  • Black Mystic Topaz
    Black
  • Blue Mystic Topaz
    Blue
  • Brown Mystic Topaz
    Brown
  • Colorless Mystic Topaz
    Colorless
  • Gray Mystic Topaz
    Gray
  • Green Mystic Topaz
    Green
  • Multi-color Mystic Topaz
    Multi-color
  • Orange Mystic Topaz
    Orange
  • Pink Mystic Topaz
    Pink
  • Purple Mystic Topaz
    Purple
  • Red Mystic Topaz
    Red
  • White Mystic Topaz
    White
  • Yellow Mystic Topaz
    Yellow

Countries of Origin

Unknown; Sri Lanka; China; Namibia; Brazil; Nigeria; Thailand; India

History

This colorful beauty begins with a natural topaz gemstone that is millions of years old. Modern technology makes it even more beautiful and desirable with a process that deposits a thin film onto part of the surface of a white topaz gem. This creates an eye-catching rainbow effect as light passes through the stone. The result is a dazzling kaleidoscope of colors. The result is Mystic Topaz®. The result is... almost magical!

Care

The coating that gives this stone its rainbow should not be re-polished, scratched, or chipped. Gentle rinsing in warm water should be all you need to keep it bright. Keep your Mystic Topaz® free of perfumes, lotions, and chemicals.