Arrojadite-(BaNa) is a rare phosphate mineral predominantly found in granitic pegmatites. It typically appears as dark green to olive-green massive or granular aggregates that can be difficult to distinguish from other phosphate minerals without chemical analysis.

Hardness

4-5

Mohs

Luster

Vitreous

Streak

White

Transparency

Translucent

mineralrareArrojadite Group family

Arrojadite-(BaNa)

Hardness: 4-5
Luster: Vitreous
Streak: White
Transparency: Translucent

Is this arrojadite-(bana)?

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 arrojadite-(bana) with a known reference. Arrojadite-(BaNa) 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. Arrojadite-(BaNa) leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Arrojadite-(BaNa) typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: dark green, brownish-green, olive-green.
5
Look at form & habit
Crystal system: monoclinic. Typical habit: granular to massive.

Often confused with

Arrojadite-(BaNa) vs. its common look-alikes — and how to tell them apart in the field.

Often found alongside arrojadite-(bana)

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

All properties

Chemical formula: Na₂Ba(Fe²⁺,Mn²⁺)₁₃Al(PO₄)₁₁(OH,F)₂
Mohs hardness: 4-5
Density: 3.55 g/cm³
Colors: Dark Green Brownish-green Olive-green
Streak: White
Luster: Vitreous
Transparency: Translucent
Crystal system: Monoclinic
Crystal habit: Granular to Massive
Cleavage: Poor
Rarity: Rare
Uses: Collector
Host rock: Granite Pegmatites
Typical price: $50-300 per specimen depending on size and quality

Where rockhounds find arrojadite-(bana)

Classic worldwide localities

Tip Top Mine, South Dakota, USA
Mangualde, Portugal
Buranga pegmatite, Rwanda
Kola Peninsula, Russia

Field-hunting tip

Look in granite pegmatites country — that is the host setting where arrojadite-(bana) typically forms. If you start seeing albite, quartz, muscovite in float, you are in the right ground. Field specimens usually show a granular to massive habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify arrojadite-(bana)?+

Mohs hardness is 4-5. It typically shows a vitreous luster. The streak is white. Common colors include dark green, brownish-green, olive-green.

Where is arrojadite-(bana) found?+

Notable localities include Tip Top Mine, South Dakota, USA; Mangualde, Portugal; Buranga pegmatite, Rwanda; Kola Peninsula, Russia.

How much is arrojadite-(bana) worth?+

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

What rocks look like arrojadite-(bana)?+

Arrojadite-(BaNa) is most often confused with Triplite, Graftonite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with arrojadite-(bana)?+

Arrojadite-(BaNa) commonly co-occurs with Albite, Quartz, Muscovite, Apatite, Beryl. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does arrojadite-(bana) form in?+

Arrojadite-(BaNa) typically forms in granite pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.

What is arrojadite-(bana) used for?+

Arrojadite-(BaNa) is used in collector.

Find arrojadite-(bana) on the map

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