Jamborite

The crystals are so tightly packed it almost looks fuzzy.
Overview
Jamborite is a mineral that can be found in the 

Its main practical uses are in tailoring and dyeing. When placed in the spool of the 


Because Jamborite serves as both a mineral and a dye item, it is worth saving at least one copy if you plan to use the Sewing Machine or want access to green dye options. Additional copies can be kept for later tailoring projects, while extras beyond that can be treated like most surplus minerals once those uses are covered.
Official description
The crystals are so tightly packed it almost looks fuzzy.