crystalline

crys·tal·line  (krst-ln, -ln, -ln)

adj.

1. Being, relating to, or composed of crystal or crystals.

2. Resembling crystal, as in transparency or distinctness of structure or outline.

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[Middle English cristallin, from Old French, from Latin crystallinus, from Greek krustallinos, from krustallos, ice, crystal; see kreus- in Indo-European roots.]

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crystal·lini·ty (-ln-t) n.

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crystalline

Adjective

1. of or like crystal or crystals

2. clear

Thesaurus

Adj.	1.	crystalline - consisting of or containing or of the nature of crystals; "granite is crystalline" noncrystalline - not crystalline
	2.	crystalline - distinctly or sharply outlined; "crystalline sharpness of outline"- John Buchan distinct - easy to perceive; especially clearly outlined; "a distinct flavor"; "a distinct odor of turpentine"; "a distinct outline"; "the ship appeared as a distinct silhouette"; "distinct fingerprints"
	3.	crystalline - transmitting light; able to be seen through with clarity; "the cold crystalline water of melted snow"; "crystal clear skies"; "could see the sand on the bottom of the limpid pool"; "lucid air"; "a pellucid brook"; "transparent crystal" crystal clear, pellucid, transparent, limpid, lucid clear - allowing light to pass through; "clear water"; "clear plastic bags"; "clear glass"; "the air is clear and clean"