Hessonite

Big Photo

Madagascar
22.77 carats
© gemselect.com

Hessonite, also known as the 'cinnamon stone', is a golden orange variety of grossular garnet.

Hessonite Gemstones by Colour

This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
 
 
 
 

Hessonite Gemstones by Size

This table shows distribution of Hessonite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:0.25 cts
Heaviest:23.21 cts
Average:5.24 cts
Total photos:47
Do you have a larger Hessonite? Why not upload a photo?
0.25ct to 2.55ct2.55ct to 4.84ct4.84ct to 7.14ct7.14ct to 9.43ct9.43ct to 11.73ct11.73ct to 14.03ct14.03ct to 16.32ct16.32ct to 18.62ct18.62ct to 20.91ct20.91ct to 23.21ct
General Information
A variety or type of:Grossular, which is a variety of Garnet Group
Photos of natural/un-cut material from mindat.org
Physical Properties of Hessonite
Mohs Hardness7 to 7.5
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Specific Gravity3.55 to 3.73
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
FractureUneven,Conchoidal
Wikipedia (2012)
Optical Properties of Hessonite
Refractive Index1.742 to 1.748
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Optical CharacterIsotropic
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) Anomalous double refraction
Colour
Colour (General)Brownish, brownish-yellow, orange-red, brown, yellow
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Causes of ColourOrange, Mn2+ in distorted cubic coordination, Fe3+
W. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011)
TransparencyTransparent
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Fluorescence & other light emissions
Fluorescence (General)Inert
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Crystallography of Hessonite
Crystal SystemIsometric
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Inclusions in Hessonite
Characteristic "heat-wave" effect, honey-like appearance. Rounded crystals of apatite, calcite, zircon - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p. 3
Inclusions: diopside, apatite - Gemmological Tables, Ulrich Henn and Claudio C. Milisenda, 2004, p 24
Further Information
Mineral information:Hessonite information at mindat.org
Significant Gem Localities
Canada
 
  • Qu├ębec
    • Estrie
      • Les Sources RCM
        • Asbestos
Amabili et al. (2004, 2008)
Myanmar
 
  • Mandalay Region
    • Yamethin District
Ted Themelis (2008) Gems & mines of Mogok
Russia
 
  • Chelyabinsk Oblast
    • Zlatoust
      • Nazyamskie Mts
Evseev (1993)
Sri Lanka
 
  • Sabaragamuwa Province
    • Ratnapura District
      • Ratnapura
G. Zoysa (2009)
  • Uva Province
    • Moneragala District
G. Zoysa (2009)
G. Zoysa (2009)
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