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Garnet · Variety of Garnet

Mint Garnet

Pale mint green to pastel green

Green
Optical properties

Optical characteristics

Ref. index
1.73 – 1.76
Luster
Vitreous to adamantine
Pleochroism
None None; garnets are singly refractive and isotropic.
Fluorescence
Usually inert.
Origins

Source localities

Tanzania Tanzania: Merelani Hills
Major

Major source for tanzanite, garnet, spinel, tourmaline, ruby and fancy sapphires.

50% est. supply
Kenya Kenya: Tsavo region
Notable ★ Top Source

Kenya Tsavo region produces mint-green grossular alongside tsavorite.

50% est. supply
Inclusions

Inclusions & features

Crystals Crystal Inclusions Under 10x loupe: solid, well-formed mineral crystals trapped inside the host gem. They may… Fractures Feathers and Fractures Under 10x loupe: irregular internal surfaces that catch light and appear bright, wing-like, or… Fractures Fingerprint Inclusions Under 10x loupe: curved or wavy lines of tiny dots forming patterns that look… Clouds Pinpoint Clouds Under 10x loupe: concentrations of extremely tiny bright dots that individually are too small… Multiphase Two-Phase Inclusions Under 10x loupe: a transparent irregular cavity containing both a liquid phase and a…
Identification

Instruments used

10x Loupe Your most-used instrument, start every examination here Polariscope Determines single vs. double refraction, quick and conclusive Refractometer Measures refractive index, the backbone of gem identification UV Lamp, Long Wave and Short Wave Fluorescence exposes treatments, synthetics, and origin