Nickolayite is an extremely rare nickel-iron alloy recognized primarily from the Khatyrka meteorite. It typically occurs as microscopic grains within meteorite matrices and is highly prized by advanced mineral collectors and researchers studying extraterrestrial materials.

Hardness
4-5
Mohs
Luster
Metallic
Streak
Metallic Grey
Transparency
Opaque

Is this nickolayite?

5-step field check

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

  • 1
    Test the hardness
    Try to scratch nickolayite with a known reference. Nickolayite sits at Mohs 4-5 — softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Nickolayite leaves a metallic grey streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Nickolayite typically shows a metallic luster.
  • 4
    Match the color range
    Compare against the expected color range: white, gray.
  • 5
    Look at form & habit
    Crystal system: cubic. Typical habit: interstitial grains.

Often confused with

Nickolayite vs. its common look-alikes — and how to tell them apart in the field.

Often found alongside nickolayite

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

All properties

Chemical formula
Ni₃Fe
Mohs hardness
4-5
Density
8.5 g/cm³
Colors
Streak
Metallic Grey
Luster
Metallic
Transparency
Opaque
Crystal system
Cubic
Crystal habit
Interstitial Grains
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
CV3 Carbonaceous Chondrite Meteorites
Typical price
$100-500+ per specimen

Where rockhounds find nickolayite

Classic worldwide localities

  • Khatyrka meteorite
  • Chukotka region
  • Russia

Field-hunting tip

Look in cv3 carbonaceous chondrite meteorites country — that is the host setting where nickolayite typically forms. If you start seeing icosahedrite, cupalite, forsterite in float, you are in the right ground. Field specimens usually show a interstitial grains habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify nickolayite?+
Mohs hardness is 4-5. It typically shows a metallic luster. The streak is metallic grey. Common colors include white, gray.
Where is nickolayite found?+
Notable localities include Khatyrka meteorite; Chukotka region; Russia.
How much is nickolayite worth?+
Typical asking prices fall in the range of $100-500+ per specimen. Quality, size, and provenance can move individual specimens well outside that range.
What rocks look like nickolayite?+
Nickolayite is most often confused with Taenite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with nickolayite?+
Nickolayite commonly co-occurs with Icosahedrite, Cupalite, Forsterite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does nickolayite form in?+
Nickolayite typically forms in cv3 carbonaceous chondrite meteorites. Working float back to the host body is the standard way to chase a fresh occurrence.
What is nickolayite used for?+
Nickolayite is used in collector.

Find nickolayite on the map

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