Ovamboite is a rare copper iron germanium sulfide primarily identified in the famous Tsumeb Mine of Namibia. It typically appears as massive, metallic-looking grains and is often found in association with other germanium-bearing minerals in hydrothermal ore deposits.

Hardness

3-3.5

Mohs

Luster

Metallic

Streak

Black

Transparency

Opaque

mineralrare

Ovamboite

Hardness: 3-3.5
Luster: Metallic
Streak: Black
Transparency: Opaque

Is this ovamboite?

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 ovamboite with a known reference. Ovamboite sits at Mohs 3-3.5, softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Ovamboite leaves a black streak.
3
Read the luster
Hold the specimen under a strong light. Ovamboite typically shows a metallic luster.
4
Match the color range
Compare against the expected color range: grayish white.
5
Look at form & habit
Crystal system: cubic. Typical habit: massive.

Often confused with

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

Often found alongside ovamboite

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

All properties

Chemical formula: Cu₂₀Fe₆Ge₄S₃₂
Mohs hardness: 3-3.5
Density: 6.08 g/cm³
Colors: Grayish White
Streak: Black
Luster: Metallic
Transparency: Opaque
Crystal system: Cubic
Crystal habit: Massive
Cleavage: None
Rarity: Rare
Uses: Collector
Host rock: Hydrothermal Veins
Typical price: $50-300+ per specimen

Where rockhounds find ovamboite

Classic worldwide localities

Tsumeb Mine, Namibia

Field-hunting tip

Look in hydrothermal veins country, the host setting where ovamboite typically forms. If you start seeing tsumebite, galena, germanite in float, you are in the right ground. Field specimens usually show a massive habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify ovamboite?+

Mohs hardness is 3-3.5. It typically shows a metallic luster. The streak is black. Common colors include grayish white.

Where is ovamboite found?+

Notable localities include Tsumeb Mine, Namibia.

How much is ovamboite worth?+

Typical asking prices fall in the range of $50-300+ per specimen. Quality, size, and provenance can move individual specimens well outside that range.

Is ovamboite safe to handle?+

It contains toxic constituents. Contains copper and potentially arsenic or other heavy metal trace elements; wash hands thoroughly after handling and avoid ingestion or inhalation of dust. Handle with care, avoid grinding or breathing dust, and store separately.

What rocks look like ovamboite?+

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

What minerals are found with ovamboite?+

Ovamboite commonly co-occurs with Tsumebite, Galena, Germanite, Renierite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does ovamboite form in?+

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

What is ovamboite used for?+

Ovamboite is used in collector.

Find ovamboite on the map

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