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 — that is 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.