Adjective
1. consisting of or containing or of the nature of crystals;
"granite is crystalline"2. distinctly or sharply outlined;
"crystalline sharpness of outline"- John Buchan3. 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 cristal"