Strong's G969 — βήρυλλος (noun)
berullos (bay'-rool-los) n.
1. a "beryl"
2. a mineral of great hardness usually of blue or bluish green, but also yellow, pink, and white. (i.e. aquamarine and emerald)
[of uncertain derivation]
KJV: beryl 
Occurrences: 1