tetragonal Simulant diamond simulant

Synthetic Rutile (Faceted)

TiO2

Crystal Structure

CDL Notation

 #! Species: Synthetic Rutile
#! System: Tetragonal (4/mmm)
#! Habit: Tetragonal prism with dipyramid
tetragonal[4/mmm]:{110}@1.0 + {100}@0.8 + {101}@0.6

Crystal System tetragonal

Point Group 4/mmm

Crystal Forms (3)

{110} {100} {101}

Quick Facts

Hardness

6.0

Specific Gravity

4.25

Refractive Index

2.616

Optical Character

Uniaxial +

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Physical Properties

Crystal Systemtetragonal

Hardness (Mohs)6.0

Specific Gravity4.25

CleavageDistinct on {110}

FractureConchoidal to sub-conchoidal

LustreAdamantine to sub-metallic

Optical Properties

Refractive Index2.616

Birefringence0.287

Optical CharacterUniaxial +

Dispersion0.33

FluorescenceInert

Origin & Identification

OriginSimulant

Growth MethodFlame Fusion

First Produced1948

Diagnostic FeaturesExtreme birefringence (0.287) causing obvious doubling of back facets, very high dispersion (0.330), yellowish body colour in most specimens, low hardness (6-6.5), very rare in modern trade