Majindeite is a rare magnesium molybdenum oxide. It occurs in a CV3 carbonaceous chondrite. It was first described from material found in Mexico (meteorite).
Hardness
3.5
Mohs
Transparency
Opaque
Is this majindeite?
2-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch majindeite with a known reference. Majindeite sits at Mohs 3.5, softer than the next harder reference, harder than the previous one.
- 2Look at form & habitCrystal system: hexagonal. Typical habit: anhedral grains and aggregates.
Often confused with
Majindeite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside majindeite
Minerals reported to co-occur with majindeite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Mg₂Mo₃O₈
- Mohs hardness
- 3.5
- Density
- 5.54 g/cm³
- Transparency
- Opaque
- Crystal system
- Hexagonal
- Crystal habit
- Anhedral grains and aggregates
- Rarity
- Rare
- Uses
- Collector
- Host rock
- In a CV3 carbonaceous chondrite
Where rockhounds find majindeite
Classic worldwide localities
- Material found in Mexico (meteorite)
Field-hunting tip
Where it forms: In a CV3 carbonaceous chondrite. If you start seeing apatite, nb-oxide, spinel in float, you are in the right ground. Typical habit: anhedral grains and aggregates. Train your eye for that shape before scanning the outcrop.
Common questions
How do you identify majindeite?+
Mohs hardness is 3.5.
Where is majindeite found?+
Notable localities include Material found in Mexico (meteorite).
What rocks look like majindeite?+
Majindeite is most often confused with Galena, Molybdenite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with majindeite?+
Majindeite commonly co-occurs with Apatite, Nb-oxide, Spinel, Diopside, Awaruite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does majindeite form in?+
Where it forms: In a CV3 carbonaceous chondrite. Working float back to the host body is the standard way to chase a fresh occurrence.
What is majindeite used for?+
Majindeite is used in collector.






