Native mercury is unique for being the only metal that is liquid at standard room temperature. It typically appears as silvery, highly reflective droplets or coatings in association with cinnabar in mercury-rich deposits.

Luster

Metallic

Transparency

Opaque

mineraluncommon

Native Mercury

Also: Quicksilver

Luster: Metallic
Transparency: Opaque

Is this native mercury?

3-step field check

Run through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.

1
Read the luster
Hold the specimen under a strong light. Native Mercury typically shows a metallic luster.
2
Match the color range
Compare against the expected color range: silver-white.
3
Look at form & habit
Crystal system: trigonal. Typical habit: droplets, films, or coatings in cavities.

Often confused with

Native Mercury vs. its common look-alikes, and how to tell them apart in the field.

Often found alongside native mercury

Minerals reported to co-occur with native mercury. Spotting these in float or country rock is a strong cue you are in the right ground.

All properties

Chemical formula: Hg
Density: 13.5-13.6 g/cm³
Colors: Silver-white
Luster: Metallic
Transparency: Opaque
Crystal system: Trigonal
Crystal habit: Droplets, Films, Or Coatings in Cavities
Cleavage: None
Rarity: Uncommon
Uses: Collector, Scientific Research
Host rock: Hydrothermal Veins

Where rockhounds find native mercury

Classic worldwide localities

Almaden, Spain
Idrija, Slovenia
Monte Amiata, Italy
New Almaden, California, USA

Field-hunting tip

Look in hydrothermal veins country, the host setting where native mercury typically forms. If you start seeing cinnabar, calomel, pyrite in float, you are in the right ground. Field specimens usually show a droplets, films, or coatings in cavities habit, so train your eye for that shape before scanning the outcrop.

More native mercury photos

Common questions

How do you identify native mercury?+

It typically shows a metallic luster. Common colors include silver-white.

Where is native mercury found?+

Notable localities include Almaden, Spain; Idrija, Slovenia; Monte Amiata, Italy; New Almaden, California, USA.

Is native mercury safe to handle?+

It contains toxic constituents. Mercury is highly toxic through inhalation of vapors or skin absorption. Handle with extreme care using gloves and seal in airtight containers; do not ingest or heat. Handle with care, avoid grinding or breathing dust, and store separately.

What rocks look like native mercury?+

Native Mercury is most often confused with Galena. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with native mercury?+

Native Mercury commonly co-occurs with Cinnabar, Calomel, Pyrite, Dolomite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does native mercury form in?+

Native Mercury typically forms in hydrothermal veins. Working float back to the host body is the standard way to chase a fresh occurrence.

What is native mercury used for?+

Native Mercury is used in collector, scientific research.

Find native mercury on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.