Mali Garnet ( Ugrandite)
A highly dispersive garnet named after the country where it was found

Mali Garnets are named after the West African country Mali where they are found. They are very bright with unusually high dispersion.
Like most gem quality garnets these are formed from a mix of different species of garnet. In this case three species – uvarovite, grossular and andradite, with a gemological name ‘Ugrandite’.
Andradite has dispersion that is greater than diamond, and dispersion is the optical property that splits light into its component colors. That explains all those flashes of color when we look at these beautiful gems!
Garnets are part of a large family of silicate minerals that have similar physical properties but vary in chemical composition.
Pure Garnet would be colorless; it is the trace elements that give garnets their colors. For example, iron and chromium create reds and greens; chromium and vanadium create greens, and manganese creates pinks and oranges.
Garnet is the birthstone for January and comes in almost all colors of the spectrum including the rare color-change.
Lots of choice for January birthdays!
We have many more shapes and sizes available in Mali Garnet – please contact us if you don’t find what you are looking for in our online inventory.
click here to see a selection of Mali Garnet ( Ugrandite) for sale
Colors | chartreuse greenish-yellow yellowish- green light yellow medium yellow pale yellow pale green brownish-yellow brownish-orange |
Family/Species | Garnet, Ugrandite (a mix of Uvarovite, Grossular and Andradite) |
Properties | Grossular Garnet: RI = 1.735 (-0.035, +0.015) SR SG = 3.61 (-0.27, +0.12) Dispersion=0.028 Hardness=7 Andradite Garnet: RI = 1.875 (=/-0.020) SR SG = 3.84 (=/-0.03) dispersion=0.057 (much higher than Diamond which is 0.044!) hardness=7 suitable for use in jewelry |
Treatments | None |
Important information | 100% natural garnet which is not normally treated in any way see policy on Treatment Disclosure Rare – in all sizes and colors |
Birthstone | January |
Anniversary | 2nd |
Cuts | Calibrated sizes up to 5mm |
Mining locations |