Every element below is fully determined by its six lines — nothing here is hand-set. The upper trigram is the face (how it meets the fields: what it radiates, absorbs, seals or conducts). The lower trigram is the body (its inner disposition: what it stores, how it holds together). Descriptions and uses are interpretive readings of that physics — the physics itself never bends to them.
Two experimental stats included as requested. Permeability is read off the face's Boundary stance (sealed / half-open / open) — it sets what reaches the body. Reactivity counts the strained (incorrect) lines, 0–6: how readily this matter transmutes under pressure. Balance-stone (63) sits at zero; Volatile Flux (64) at six.