The word "Spathic" has been used to describe various things, including minerals, compounds, and even creatures. If you're looking for synonyms to replace this word, you might consider options like crystalline, glassy, or vitreous, depending on the context. Other alternatives could include various rock or mineral names like calcite, dolomite, or aragonite, which are closely related to the general "spathic" category. Alternatively, depending on the specific usage, you could also consider words like pointed, spear-like, or lance-shaped, which might better capture the intended meaning. Overall, while there isn't necessarily a perfect replacement for "spathic," there are plenty of synonyms that can help communicate your ideas and descriptions effectively.