The main uses of gems are:

Providing mana and empowering spells.

Allowing people to cast spells outside of their Mark Affinities and Methods

Allowing the effect of a spell to have permeance

Powering patterns and devices

Acting as currency

Because gemstones act as a source of mana, and can empower a spell, they can be used as tools to help in the learning of magic.

Gemstones form in three main ways.

1. Naturally from sunlight fitering through magic regions.

2. When a living creature dies, the remaining mana in it's body turns into a gemstone.

3. In Temples

There are a variety of Gemstone Colours, and Tiers

Basic Gemstones:

Ruby - Red Gemstone - Firestone

Topaz - Yellow Gemstone - Corestone

Emerald - Green Gemstone - Seastone

Sapphire - Blue Gemstone - Skystone

Compound Gemstones:

Garnet- Red Green Gemstone - Lifestone

Jasper - Red Yellow Gemstone - Breakstone

Carnelian - Red Blue Gemstone - Timestone

Zircon - Blue Yellow Gemstone - Lightstone

Beryl - Blue Green Gemstone - Purestone

Heliodor - Green Yellow Gemstone - Treestone

Special Gems

Diamond - White Gemstone - Sunstone

Obsidian - Black Gemstone - Abyss Stone

Amethyst - Purple Gemstone - Demonstone

Opal - Synthetic Gemstone - Magestone

Note: Amethyst can only be formed when living creatures die, and there are linked to specific colours, to see more read Demons

The grade of a gemstone determines it's value and the density of the mana it contains. These often form in their described shape.

Round

Slug

Disk

Monom

Duom

Triom

Quadom

Pentom

Hexom

Septom

Octom

Nonom

Decom

Diaom

Spherom