What is Gemology? Gemology is the science that studies gems and gemstones. Considered a geoscience and a branch of mineralogy, it plays a crucial role in the identification and evaluation of precious jewels. Gemologists analyze the chemical composition, colors, inclusions and the internal structure of gems.

A


Agate
Alexandrite
Almandine Garnet
Amazonite
Amber
Amethyst
Ametrine
Ammolite
Andalusite
Andesine
Anyolite
Apatite
Aquamarine
Aventurine
Axinite
Azotic
Azurite

B


Beryl
Bloodstone
Boulder Opal
Bronzite

C


Calcite
Calsilica
Carnelian
Cassiterite
Chalcedony
Charoite
Chrome
Chrysoberyl
Chrysocolla
Chrysoprase
Citrine
Clinohumite
Coral

D


Danburite
Demantoid Garnet
Dendritic Agate
Diamond
Diopside
Dumortierite

E


Emerald
Epidote
Eudialyte

F


Fluorite

G


Garnet
Goshenite
Grossularite
Granite

H


Hambergite
Hawk Eye
Hematite
Hemimorphite
Hessonite Garnet
Howlite

I


Idocrase
Iolite

J


Jade
Jasper

K


Kunzite
Kyanite

L


Labradorite
Lapis Lazuli
Larimar
Lepidolite

M


Malachite
Mali Garnet
Marcasite
Moonstone
Morganite
Mother of Pearl

O


Obsidian
Onyx
Opal

P


Pearl
Peridot
Pietersite
Prehnite
Pyrite
Pyrope

Q


Quartz

R


Rhodochrosite
Rhodolite
Rhodonite
Rubellite
Ruby
Rutile

S


Sandstone
Sapphire
Scapolite
Seraphinite
Serpentine
Smithsonite
Sodalite
Spessartite Garnet
Sphalerite
Sphene
Spinel
Spodumene
Sugilite
Sunstone

T


Tanzanite
Thulite
Tiger Eye
Tiger Iron
Topaz
Tourmaline
Tranquillityite
Tsavorite
Turquoise

U


Unakite

V


Variscite

Z


Zircon