GLOBAL GEMOLOGY - RARE GEMS & JEWELS
  • 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

hematine


Hand carved hematine intaglio
Hand carved hematine intaglio
Species:  Hematine
​​Mohs Hardness:  5.5 to 6.5 out of 10
Color:  Opaque dark gray to black with metallic polish luster.  May show reddish color at fracture surfaces.
RI:  OTL
Birefringence:  0.280 (usually not detectable)
SR/DR/AGG:  Too opaque to test
Spectrum:  Not diagnostic
Fluorescence:  Inert
SG:  5.20 (+0.08/-0.25)

hematine facts

Hand carved hematine intaglio
Hematine hardstone cameo

Hematine has a mirror-like, metallic chrome luster when polished.

Hematine can be slightly magnetic.

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)
  • 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