This information is taken from the Japan Masterwiki, I've posted as a guideline to what is needed and will be updating as soon as the mats needed in the EU/NA version can be confirmed.
|White Knight Chronicles II » Geoforging » Undead Species|
- The recipes are calculated as they appear in your guild, and could be different from day to day. They will always be the same equation though, if recipe is Normalx1 + Hardx1, it could involve any combination of 1 Normal and 1 Hard.
 Undead Species
|Item||Number Made||Geostone 1||Geostone 2||Geostone 3|
|Undead Sickle||2||Normal x2||Normal x2|
|Darkened Husk||1||Normal x3||Hard x1|
|Undead Bone||1||Normal x2||Normal x2||Hard x1|
|Undead Sickle+||2||Hard x1||Hard x1|
|Transparent Husk||1||Hard x2||Hard x1|
|Undead Bone+||1||Hard x3||Rare x1|
|Reaper Scythe||2||Normal x3||Hard x2||Hard x1|
|Squirming Husk||1||Capricorn Gem x2||Aquarius Gem x1||Pisces Gem x1|
|Reaper Bone||1||Virgo Quartz x3||Pisces Gem x2|