Frankincense is sap-like resin from the leafy forest tree Boswellia Thurifera. Used mainly for purification and cleansing, ideal if you are moving into a new house and want to clear it of any residual energy.
Copal resin is traditionally burned in protection, cleansing and purification ceremonies. The dried resin, when burned, emits an fragrance akin to frankincense but with a lighter, more citrusy tone. Traditionally heated using purpose designed charcoal discs, which are readily available.