Mohite is a rare copper tin sulfide, typically gray with a greenish tint. It occurs in hydrothermal origin. Associated minerals include tetrahedrite, famatinite and kuramite. It was first described from Kochbulak gold deposit, Chatkal-Kuramin Mountains, eastern Uzbekistan.

Hardness
4
Mohs
Luster
Metallic
Streak
Gray
Transparency
Opaque

Is this mohite?

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 mohite with a known reference. Mohite sits at Mohs 4, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: gray.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: metallic.
  • 4
    Match the color range
    Compare against the expected color range: greenish gray.
  • 5
    Look at form & habit
    Crystal system: triclinic. Typical habit: microscopic crystals.

Often confused with

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

Often found alongside mohite

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

All properties

Chemical formula
Cu₂SnS₃
Mohs hardness
4
Density
4.86 g/cm³
Streak
Gray
Luster
Metallic
Transparency
Opaque
Crystal system
Triclinic
Crystal habit
Microscopic crystals
Cleavage
Perfect basal
Rarity
Rare
Uses
Collector
Host rock
Of hydrothermal origin

Where rockhounds find mohite

Classic worldwide localities

  • April Fool mine, Delamar district, Lincoln Co., Nevada, USA
  • Kochbulak gold deposit, Chatkal-Kuramin Mountains, eastern Uzbekistan (type locality)
  • Barquilla deposit, Salamanca Province, Spain

Field-hunting tip

Where it forms: Of hydrothermal origin. If you start seeing tetrahedrite, famatinite, kuramite in float, you are in the right ground. Typical habit: microscopic crystals. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify mohite?+
Mohs hardness is 4. Luster: metallic. The streak is gray. Common colors include greenish gray.
Where is mohite found?+
Notable localities include April Fool mine, Delamar district, Lincoln Co., Nevada, USA; Kochbulak gold deposit, Chatkal-Kuramin Mountains, eastern Uzbekistan (type locality); Barquilla deposit, Salamanca Province, Spain.
Is mohite safe to handle?+
Mohite contains copper. Contains copper, which is toxic if ingested or inhaled as dust. Wash hands thoroughly after handling and avoid creating dust.
What rocks look like mohite?+
Mohite is most often confused with Berzelianite, Umangite, Chalcocite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with mohite?+
Mohite commonly co-occurs with Tetrahedrite, Famatinite, Kuramite, Mawsonite, Emplectite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does mohite form in?+
Where it forms: Of hydrothermal origin. Working float back to the host body is the standard way to chase a fresh occurrence.
What is mohite used for?+
Mohite is used in collector.

Find mohite on the map

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