Phosphovanadylite-Ba is a rare secondary phosphate mineral found primarily in unique sedimentary environments where vanadium-rich solutions interact with phosphate minerals. It is best identified by its vibrant green, square-shaped, transparent cubic crystals often forming on matrix with other secondary minerals. Due to its scarcity and delicate nature, it is highly sought after by advanced mineral collectors.

Hardness
3
Mohs
Luster
Vitreous
Streak
Pale Green
Transparency
Transparent

Is this phosphovanadylite-ba?

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 phosphovanadylite-ba with a known reference. Phosphovanadylite-Ba sits at Mohs 3 — softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Phosphovanadylite-Ba leaves a pale green streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Phosphovanadylite-Ba typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: green, yellow-green.
  • 5
    Look at form & habit
    Crystal system: cubic. Typical habit: cubo-octahedral crystals, often as small, delicate, square-shaped tabular forms.

Often confused with

Phosphovanadylite-Ba vs. its common look-alikes — and how to tell them apart in the field.

Often found alongside phosphovanadylite-ba

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

All properties

Chemical formula
Ba(V⁴⁺O)₂(PO₄)₂(OH)₂·8H₂O
Mohs hardness
3
Density
2.84 g/cm³
Streak
Pale Green
Luster
Vitreous
Transparency
Transparent
Crystal system
Cubic
Crystal habit
Cubo-octahedral Crystals, Often as Small, Delicate, Square-shaped Tabular Forms
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
Phosphate-rich Sedimentary Concretions and Hydrothermal Fractures
Typical price
$50-300 per specimen depending on crystal size and quality

Where rockhounds find phosphovanadylite-ba

Classic worldwide localities

  • Big Fish River, Yukon Territory, Canada
  • Spring Creek, Queensland, Australia

Field-hunting tip

Look in phosphate-rich sedimentary concretions and hydrothermal fractures country — that is the host setting where phosphovanadylite-ba typically forms. If you start seeing vauxite, paravauxite, metavauxite in float, you are in the right ground. Field specimens usually show a cubo-octahedral crystals, often as small, delicate, square-shaped tabular forms habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify phosphovanadylite-ba?+
Mohs hardness is 3. It typically shows a vitreous luster. The streak is pale green. Common colors include green, yellow-green.
Where is phosphovanadylite-ba found?+
Notable localities include Big Fish River, Yukon Territory, Canada; Spring Creek, Queensland, Australia.
How much is phosphovanadylite-ba worth?+
Typical asking prices fall in the range of $50-300 per specimen depending on crystal size and quality. Quality, size, and provenance can move individual specimens well outside that range.
What rocks look like phosphovanadylite-ba?+
Phosphovanadylite-Ba is most often confused with Phosphovanadylite-Ca, Vashegyite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with phosphovanadylite-ba?+
Phosphovanadylite-Ba commonly co-occurs with Vauxite, Paravauxite, Metavauxite, Siderite, Quartz. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does phosphovanadylite-ba form in?+
Phosphovanadylite-Ba typically forms in phosphate-rich sedimentary concretions and hydrothermal fractures. Working float back to the host body is the standard way to chase a fresh occurrence.
What is phosphovanadylite-ba used for?+
Phosphovanadylite-Ba is used in collector.

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