crystalline
crys-tal-line
adjective
Resembling crystal in structure, transparency, or clarity; very clear.
"The lake's crystalline waters sparkled beautifully."
Thesaurus
Synonyms: polycrystalline, crystallized, microcrystalline, crystalised, clear, lucid, transparent, crystal clear, limpid, pellucid, distinct
Antonyms: noncrystalline