| Hessonite
garnet is a variety of grossularite.
It is common in the gem gravels
of Sri Lanka and, practically all
the gem material is obtained from
this locality. From a gemological
perspective the peculiar and unique
treacly streaks give the stone's
interior an oily or even glasslike
appearance. Widely used in astrology. |
| Gemological
Information |
| Color
: |
Brownish-orange,
brownish yellow, aurora red |
| Refractive
Index: |
1.72-1.74 |
| Chemical
Composition: |
Ca3Al2(SIO4)3 |
| Hardness: |
7.25 |
| Density: |
3.65 |
| Crystal
Group: |
Cubic |
| Ocurrence: |
Sri
Lanka, Mexico, Brazil, Canada, Madagascar |
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