κρύσταλλος (krýstallos|kroos'-tal-los|noun|crystal)
[Grk] κρύσταλλος LN: 2.11, 2.46 GK: G3223, G3224 Hebrew: אַפִּרְיֹון‎, בְּדֹלַח‎, קִיטֹור‎, קֶרַח‎
Derivation: from a derivative of κρύος (frost);
Strong's: ice, i.e. (by analogy) rock "crystal"
KJV: --crystal.