Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
hexagonalrareSilicates
Emerald
Be₃Al₂Si₆O₁₈
A vibrant green, hexagonal crystal of emerald, a variety of beryl, often found embedded in a matrix of other minerals like quartz.
Emerald Physical Properties
Mohs Hardness
7.5Crystal System
hexagonalLuster
vitreousStreak Color
whiteCleavage
imperfect basalFracture
conchoidalSpecific Gravity
2.7Colors
greenTransparency
transparentType Locality
Kagem Emerald Mine, Kafubu Emerald District, Ndola, Copperbelt Province, ZambiaMineral Group
SilicatesUses
jewelry, gemstone, collectorAssociated Minerals
quartzRarity
rareGeological Context
Emeralds typically form in metamorphic rocks, such as schists, or in pegmatites and hydrothermal veins, where beryllium-rich fluids interact with chromium or vanadium-bearing rocks, which impart their characteristic green color.
