Global Gemology - Rare Gems & Jewels
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RUTILATED QUARTZ

Picture
Rutilated quartz
Intersecting rutile needles within a rutilated quartz
Variety:  Rutilated
Species:  Quartz
​​Mohs Hardness:  7 out of 10
Color:  Clear with long, slender, red to golden rutile needle inclusions
RI:  1.544 to 1.553 (very constant)
Birefringence:  0.009
SR/DR/AGG:  DR
Clarity Type:  Type II
Optic Character:  Uniaxial positive.
Pleochroism:  None
Spectrum:  Not diagnostic
Fluorescence:  Inert
SG:  2.64 to 2.69 (Usually 2.66)
Routine Treatments:  None

Rutilated Quartz Facts

Picture

​Rutilated quartz is clear rock crystal with long, slender rutile needle inclusions, ranging from red to golden in color.

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)
  • HOME
  • ABOUT
  • SHOP
  • SERVICES
    • APPRAISALS
    • EXPERT WITNESS TESTIMONY
    • SELL YOUR JEWELRY
  • GEMOLOGY
    • GEM ENCYCLOPEDIA
    • THE ART OF GEMOLOGY
  • JEWELRY EDUCATION
    • DIAMOND FACTS
    • JEWELER DIRECTORY
    • JEWELRY PERIODS
    • POCKET WATCHES
    • NATIVE AMERICAN JEWELRY
  • GLOSSARY