Emerald is a distinct green variety of beryl colored by trace amounts of chromium and vanadium. It is famous for its characteristic hexagonal crystal habit and often contains inclusions known as 'jardin' that collectors prize for authenticity.
Is this emerald?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch emerald with a known reference. Emerald sits at Mohs 7.5-8 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Emerald leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Emerald typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: green, bluish-green, yellowish-green.
- 5Look at form & habitCrystal system: hexagonal. Typical habit: prismatic crystals.
Often confused with
Emerald vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside emerald
Minerals reported to co-occur with emerald. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Be₃Al₂Si₆O₁₈
- Mohs hardness
- 7.5-8
- Density
- 2.67-2.78 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Hexagonal
- Crystal habit
- Prismatic Crystals
- Cleavage
- Imperfect Basal
- Rarity
- Rare
- Uses
- Gemstone, Collector, Jewelry
- Host rock
- Hydrothermal Veins, Mica Schists, And Limestone
- Typical price
- $100-5000+ per carat depending on clarity, color, and treatment
Where rockhounds find emerald
11 mapped spotsClassic worldwide localities
- Colombia
- Zambia
- Brazil
- Afghanistan
- Pakistan
- Russia
Field-hunting tip
Look in hydrothermal veins, mica schists, and limestone country — that is the host setting where emerald typically forms. If you start seeing calcite, quartz, pyrite in float, you are in the right ground. Field specimens usually show a prismatic crystals habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in North Carolina, Massachusetts, South Carolina — start trip planning there.
Common questions
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Find emerald on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
