Where to Farm Empyreal Fragments?

Petrified Stumps in Ember Bay, Diffluorite Crystals in Sandswept Isles, Primordial Orchids in Draconis Mons, and Mistborn Motes in Dragonfall all drop Empyreal Fragments. You also get them from every jumping puzzle chest.

What is the best way to farm empyreal fragments?

Empyreal Fragments can also be obtained by farming Primordial Orchids. This area "may" provide a greater amount daily than Ember Bay due to the large quantity of Primordial Orchids (at least 48).

How do you get a star of gratitude?

The item can be obtained only by starting a collection on Wintersday. This involves completing a set of achievements during the event. To begin you need to complete the Grawk Munch achievement. You will need to read Orphan Laine's letter and complete their treasure hunt to get this one.