Digital TownsCrystalsShop crystals
  1. Crystals & Minerals
  2. Vanadinite

Vanadinite: Red Hexagons, Lead Chemistry and Collector Care

By Digital Towns Crystals · Last reviewed October 8, 2026

Short answer: vanadinite is lead chlorovanadate, Pb5(VO4)3Cl, a heavy, soft mineral that grows as stubby red to orange hexagonal prisms. Almost every specimen sold today comes from Morocco, above all Mibladen near Midelt, often perched on white barite. By weight it is roughly three quarters lead, so it belongs in a cabinet rather than a pocket: handle it dry, wash your hands afterwards, keep it out of strong light and never use it in drinking water.

What is vanadinite, chemically and physically?

Vanadinite is a vanadate in the apatite group, the same structural family as pyromorphite and mimetite. Its formula is Pb5(VO4)3Cl, and the numbers behind that formula explain most of how it behaves. Webmineral's calculated composition gives lead at 73.15% of the weight, vanadium at 10.79% and chlorine at 2.50% (webmineral). That lead is why a thumb-sized cluster feels like a fishing sinker.

Property Value
Formula Pb5(VO4)3Cl
Crystal system Hexagonal (dipyramidal class, P63/m)
Mohs hardness 2.5 to 4, depending on the reference
Specific gravity 6.6 to 7.2
Streak Pale yellow to brownish yellow
Luster Resinous to adamantine
Cleavage None; conchoidal to uneven fracture
Fluorescence Non-fluorescent

Hardness figures disagree across references: Minerals.net lists 2.5 to 3, while Geology.com gives 3 to 4 (Geology.com). In practice, a steel needle scratches it easily and so will a careless fingernail on a crystal edge. Specific gravity is the more useful number; Geology.com puts it at 6.6 to 7.2 depending upon purity, roughly two and a half times the density of quartz.

The mineral takes its name from its vanadium content, and its type locality is Zimapán, Hidalgo, Mexico, with a pre-IMA species date of 1839 according to webmineral.

How does vanadinite form?

Vanadinite is a secondary mineral. It does not crystallize from magma or from the original ore fluids; it grows later, when an existing lead deposit sits near the surface and weathers. According to Geology.com, it forms in the oxidized zone above lead deposits, typically from the oxidation of galena, while the vanadium and chlorine are usually leached from the overburden by downward-moving waters (Geology.com).

Climate matters. The same source notes that vanadinite deposits are usually found in arid regions, with notable occurrences in Argentina, Australia, Morocco, Namibia and the southwestern United States. Dry conditions keep the oxidation zone open and stable for long enough to grow clean crystals in cavities.

Chemistry in the oxidation zone is rarely pure. Arsenic and phosphorus substitute for vanadium, and calcium, zinc or copper can stand in for small amounts of lead. A solid solution series runs from vanadinite to mimetite, Pb5(AsO4)3Cl; the arsenic-rich intermediate is called endlichite, with the formula Pb5([V,As]O4)3Cl (Minerals.net). This substitution is one reason two "vanadinite" specimens can differ in color and density.

Where does vanadinite come from?

Minerals.net is blunt about it: vanadinite would hardly be as famous without Mibladen, Morocco, which has produced the most outstanding crystals in great abundance, usually as dense blood-red hexagonal plates (Minerals.net). Two other Moroccan localities appear on many labels. At Taouz, near Erfoud, vanadinite occurs on goethite, giving red crystals on a brown to black iron oxide crust. At Touissit, south of Oujda, it forms yellowish crystals.

Outside Morocco, collectors know Abenab, Namibia, for very large crystals coated with brown descloizite, and Chihuahua, Mexico, for fine brown crystals. In the United States vanadinite is significant only in Arizona, at classic sites such as the Old Yuma Mine in Pima County and the Apache Mine in Gila County. The full story of the Moroccan districts, including the barite and cerussite that come out of the same workings, is on our Morocco origin guide.

Why is Mibladen vanadinite usually on barite?

Barite and vanadinite share the same ground in the Mibladen district. Minerals.net lists Khenifra, Mibladen, Morocco among the well-known barite localities of the world (Minerals.net), and its vanadinite page names barite as a common associate. The white to cream bladed barite gives the red hexagons their contrast, and a specimen with crystals sitting cleanly on pale barite usually costs more than the same crystals on dull brown rock. More on the host mineral is on our barite guide.

How do you recognize real vanadinite?

Five checks settle almost every specimen:

  1. Shape. Look for six-sided prisms with flat tops, sometimes hollow in the middle (hopper growth). A square or rectangular plate is not vanadinite; that shape points to wulfenite.
  2. Weight. At a specific gravity near 7, a small cluster feels startlingly heavy. Glass, dyed calcite or resin imitations feel light.
  3. Luster. Faces show a resinous to adamantine shine, close to the look of a cut garnet, not the glassy look of quartz.
  4. Streak. Pale yellow on an unglazed tile. Do not streak a good specimen; a broken fragment is enough, and the powder contains lead, so wipe the tile and wash up.
  5. Look-alikes. Pyromorphite is usually greener and mimetite usually redder, and Minerals.net notes they otherwise cannot be told apart with simple methods. Apatite is harder (5), and red beryl is much harder (7.5 to 8) and comes from one distinctive locality (Minerals.net).

A detailed side-by-side with its closest orange cousin is on our vanadinite vs wulfenite comparison.

Is vanadinite toxic, and how should it be handled?

Vanadinite is a lead mineral, and that is the honest starting point. The risk comes from what can leave the specimen: dust, loose fragments and residue on fingers, not from looking at a stable crystal on a shelf. The University of Cambridge's Museum of Archaeology and Anthropology states that heavy metals are most dangerous through chronic exposure or when ingested, can irritate skin and eyes, and that breathing airborne particles should be avoided (MAA Cambridge). The same guidance treats stable materials or surfaces as generally safe to handle with disposable gloves alone.

Museums Galleries Scotland, writing for collection staff, adds the habits that matter at home too: never eat, drink or smoke around hazardous collections, and wash hands and clean materials thoroughly afterwards (Museums Galleries Scotland). Applied to a vanadinite cluster, that means:

  • Handle it by the matrix, not the crystals, and wash your hands with soap and water afterwards.
  • Keep it out of reach of small children and pets, and away from food areas.
  • Never put it in water you drink, in an elixir, or in a bath; never sand, grind or tumble it.
  • Dust it dry with a soft brush or air blower. If you must rinse a dirty specimen, use plain water, let it dry, and wash the sink.

Our toxic minerals handling guide covers lead, arsenic, mercury and copper minerals together.

Does vanadinite fade or darken in light?

It can. Minerals.net warns that vanadinite from some localities may darken and lose transparency upon prolonged exposure to light, and recommends keeping it away from bright light (Minerals.net). Display it in a cabinet out of direct sun, avoid hot halogen spotlights, and store backup pieces in closed boxes. A specimen that has gone dull brown on top while the hidden faces stay red has usually spent years in a sunny window.

What is vanadinite used for, and what does it mean in tradition?

Industrially, vanadinite is an ore of vanadium and a minor ore of lead. Geology.com lists it with carnotite and roscoelite as an important vanadium ore. Vanadium itself is an alloying metal; the U.S. Geological Survey notes that small amounts in certain ferrous alloys can significantly improve their properties, which is why it went into axles, crankshafts and gears from the early 1900s (USGS). Collector specimens are not mined for metal; they are pulled from cavities by hand.

In crystal traditions, vanadinite is associated with focus, stamina and grounding, mostly because of its fiery color. Those are beliefs, not measurable properties, and they change nothing about the handling rules above.

What drives vanadinite prices?

Four things move the price of a Moroccan specimen:

  • Crystal size and sharpness. Crystals over about 1 cm with flat, glassy terminations and sharp edges cost far more than crowded millimeter crystals.
  • Color. Saturated cherry red beats brownish orange.
  • Contrast and matrix. Red on white barite is the classic look; red on a plain gray or brown matrix is cheaper.
  • Damage. Vanadinite is soft and brittle, so chipped tips and bruised crystal edges are common. Look closely at the front crystals in every photo.

Shopping the vanadinite we stock

Ask four questions of any listing: what locality, what size and weight, what is the matrix, and are the front crystals intact? Weight is a quiet authenticity check, because a real vanadinite cluster of a given size is heavy.

Digital Towns Market

Vanadinite in stock

See all crystals and minerals

Frequently asked questions

Is vanadinite safe to touch?

Brief handling of a stable specimen is how museums and collectors treat it every day. The practical rules are to handle it by the matrix, avoid creating dust, keep it away from children and food, and wash your hands with soap and water afterwards. Do not lick it, crush it or put it in water.

Why does vanadinite turn dark on a shelf?

Vanadinite from some localities darkens and loses transparency after prolonged exposure to light. Move it away from windows and hot spotlights. Darkening already present usually cannot be reversed, so prevention is the only real fix.

Can vanadinite go in water?

A brief rinse of plain water to remove dust does not dissolve it, but it should never sit in water, go in a drinking vessel or be used for elixirs, because it is a lead mineral. Dry it fully and clean the sink afterwards.

Is Moroccan vanadinite ever dyed or fake?

Fakes are uncommon because real material is plentiful and cheap at small sizes. More common problems are glued crystals, repaired matrix and oil applied to boost luster. Check weight, hexagonal shape and look under a loupe for glue lines where crystals meet the base.

What is the difference between vanadinite and endlichite?

Endlichite is the intermediate between vanadinite and mimetite, with arsenate partly replacing vanadate. It is usually regarded as an arsenic-rich variety of vanadinite rather than a separate species, and fine examples come from the Ojuela Mine at Mapimí in Durango, Mexico.

Sources