I've searched through several past posts here (as far back as 2007, recent as 2012) and found some resources for shape and material bonuses (form and effect in 4th ed. and prior language) published since my beloved 4th ed.
Does anyone know of any sources published (on or off line) more recently than 2012?
I'm noticing at least one glaring example of an omitted mineral (hematite, and there's probably more) in the ArM 5 Indexing PDFs from Atlas and 5th ed. core is simply a repeat of the table from 4th ed. core.
Among canonic sources, there's a few omitance from the Atlas table, including such things as herbs and gems of virtue, things related to specific virtues (craft magic, etc.), animal parts frm Hermetic Project, some stuff from A&A. TSE Magnesian stones I think. Flint is derived from an item published in AtD p. 33. There also are a few homebrew options published in sources like Cornwall, Sub Rosa, Games from folktales. Personally, I've taken the published shape and material table and I rebuilt it with everything I found for my personalized database.