Phosphovanadylite-Ca is a rare phosphate mineral characterized by its vibrant blue, cubic-habit crystals. It is primarily sought by advanced mineral collectors and is typically found as small crystalline crusts in iron-rich phosphate environments.

Hardness
3
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this phosphovanadylite-ca?

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-ca with a known reference. Phosphovanadylite-Ca 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-Ca leaves a white streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Phosphovanadylite-Ca typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: blue, greenish blue.
  • 5
    Look at form & habit
    Crystal system: cubic. Typical habit: cubo-octahedral crystals, often as small drusy crusts.

Often confused with

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

Often found alongside phosphovanadylite-ca

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

All properties

Chemical formula
CaV⁴⁺₄P₂O₁₂(OH)₄·12H₂O
Mohs hardness
3
Density
2.51 g/cm³
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Cubic
Crystal habit
Cubo-octahedral Crystals, Often as Small Drusy Crusts
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
Sedimentary Iron Formations and Phosphate-rich Deposits
Typical price
$50-300 per thumbnail specimen

Where rockhounds find phosphovanadylite-ca

Classic worldwide localities

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

Field-hunting tip

Look in sedimentary iron formations and phosphate-rich deposits country — that is the host setting where phosphovanadylite-ca typically forms. If you start seeing gypsum, goethite, hematite in float, you are in the right ground. Field specimens usually show a cubo-octahedral crystals, often as small drusy crusts habit, so train your eye for that shape before scanning the outcrop.

Common questions

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

Find phosphovanadylite-ca on the map

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