Cerulean Spruce

Cerulean Spruce can only be grown on Ærellion's tear island and has blue wood. This is used as a status system by the owners and it fetches a very high price on the market. Due to the presence of Tear Island Magical Academy, the wood is a symbol of the academy, and the students are very protective of "their" tree. Prospective thieves rarely are able to do much harm before they're caught by zealous students eager to defend the academy's honor. The tree is also important because its closely regulated sale provides a large amount of the funding for the academy.