GLOBAL GEMOLOGY - RARE GEMS & JEWELS
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apatite


Apatite
Photo courtesy of Wikipedia
Species:  Apatite
​​Mohs Hardness:  5 out of 10
Color:  Colorless, pink, green, blue, violet, yellow
RI:  1.634 to 1.638 (+0.012 / -0.006)
Birefringence:  0.002 to 0.008
SR/DR/AGG:  DR
Clarity Type:  Type II
Pleochroism:  Uniaxial negative (distorted optic figure possible, may appear biaxial)
Spectrum:  Not diagnostic
Fluorescence:  Not diagnostic
SG:  3.18 (+/- 0.05)

apatite facts


Apatite occurs in various colors, including colorless.

Some of the most prized apatites have vivid neon blue hues that resemble Paraiba tourmaline.
  • HOME
  • ABOUT US
  • SHOP
  • GEMOLOGY
    • GEM ENCYCLOPEDIA
    • DECORATIVE PRINTS
    • THE ART OF GEMOLOGY
  • APPRAISALS
    • INSURANCE
    • DIVORCE
    • ESTATE TAX
    • ESTATE DISTRIBUTION
    • CHARITABLE DONATION
    • LIQUIDATION
    • APPRAISALS THRU EMAIL
  • SELL YOUR JEWELRY
  • JEWELRY EDUCATION
    • DIAMOND FACTS
    • JEWELER DIRECTORY
    • JEWELRY PERIODS
    • POCKET WATCHES
    • NATIVE AMERICAN JEWELRY
  • GLOSSARY