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Bijoux-Obsidienne

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The most obscure variety

Tri-Flow Obsidian, Three Stones in One

Deep black, a reddish-brown patch, a golden sheen, all in a single stone. Tri-flow obsidian is the most obscure variety in the family, and the hardest to define. Here's what this name actually covers, why a single lava flow can produce three different stones, and what to check before buying one.

Tri-flow obsidian combining black, mahogany, and gold sheen zones
Tri-flow obsidian: three distinct zones in a single stone.

What is tri-flow obsidian?

Tri-flow obsidian refers to a stone showing three clearly distinct zones within a single block, most often a black patch, a reddish-brown mahogany-type patch, and a third zone that varies: a golden sheen, pale speckling, or more translucent glass.

The term comes from "flow," the movement of lava. It signals that the stone comes from an area where several domains of a single flow, or several overlapping flows, meet. You're not looking at a variety, but at a boundary.

It's the rarest of all the trade names I cover in my guide to obsidian varieties, and by far the least documented.

✦ Camille's take

I've only seen two or three of these in my life, all with collectors. What strikes you is how sharp the zones are: it looks like three different stones glued back together. Except they were never separate to begin with.

A name with no fixed definition

Let's be upfront, since it's the most useful thing to know here: "tri-flow" has no established definition. It's neither a mineralogical term nor even a settled trade name the way mahogany or snowflake obsidian are.

Depending on the seller, you'll find under this name:

  • black + mahogany + golden sheen;
  • black + mahogany + snowflake-style speckled zones;
  • black + mahogany + translucent brown glass;
  • sometimes just a highly contrasted mahogany stone, sold under a catchier name.

The only real common thread is the coexistence of three distinct looks within one piece. Even the number three is flexible: some stones show two, others four.

Practical takeaway, don't worry about whether your stone is "really" a tri-flow. That question has no answer. Instead, look at whether the three zones are crisp, well contrasted, and evenly distributed: that's what makes a piece valuable, not the label.

Why a lava flow is never uniform

Here's the actual substance of the topic, and it's more interesting than the name. An obsidian flow is never uniform. Several factors vary from point to point, sometimes within a few centimeters.

Macro shot of the contact zone between the three domains in tri-flow obsidian
The boundary between two domains: sharp, but never a straight line.
  • Cooling speed, the edge of a flow freezes in hours, the core takes weeks. Where cooling lingers, crystals form;
  • Iron oxidation, in contact with air or water, iron oxidizes into hematite and colors the glass reddish-brown. This is what produces mahogany obsidian;
  • Gas bubble content, their distribution depends on local pressure. Aligned, they produce the sheen seen in gold sheen obsidian;
  • Lava mixing, a viscous flow folds and refolds material of slightly different origins without ever fully blending it.

A tri-flow stone is therefore a cross-section through these boundaries. You're holding several local histories in one hand: here the lava cooled fast, there it oxidized, elsewhere bubbles lined up. To understand the whole process, see my article on how obsidian is formed.

Three effect families, brought together

There's something satisfying about this variety: it gathers, in a single object, the three mechanisms that explain every obsidian.

Optical

Layers of magnetite or aligned bubbles diffract light. The effect depends on the angle.

Gold sheen · rainbow · celestial eye · fire · peacock

Crystalline

The glass crystallizes locally into spherulites. The opaque crystals form pale patches.

Snowflake · pumpkin · peanut

Structural

Flow, fractures, or oxidation stamp a pattern into the material itself.

Mahogany · midnight lace · spiderweb

A fine tri-flow stone can show all three at once: an oxidized reddish-brown zone (structural), a zone with a golden sheen (optical), and sometimes pale spherulites (crystalline). Three distinct mechanisms, one single stone.

That's what makes it, to my mind, the best teaching piece in the entire family. If you want to understand at a glance why obsidians look so different from one another despite all being the same glass, hold a tri-flow stone up to a window.

✦ The three, separately

Black, mahogany, gold sheen: to wear

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The meaning attributed to tri-flow obsidian

As with all recent trade names, there's no ancient tradition specific to tri-flow obsidian. The correspondences circulating today were formulated by analogy with the idea of union.

It's generally credited with:

  • integration: bringing together parts of yourself you keep separate, this is its dominant symbolism;
  • balance between different forces, by analogy with its zones that coexist without blending into one another;
  • versatility: some describe it as combining the qualities of the varieties that make it up;
  • protection and grounding, common to all obsidians.

An honest caveat, the idea that a tri-flow stone "combines the properties" of three varieties is appealing, but it comes from analogical reasoning, not an established tradition. If a specific correspondence matters to you, it's better to choose that variety directly.

As for chakras, it's linked to the root chakra like any obsidian, with extensions depending on which zones are present, sacral for mahogany, solar plexus for gold sheen. The full picture is in my guide to obsidian and chakras.

Spotting and buying

The main risk isn't counterfeiting, nobody makes fake tri-flow stones, demand is too low. It's more about an opportunistic label: an ordinary mahogany stone resold at a higher price under a rarer-sounding name.

The clues that matter:

  • The zones should be crisp, three genuinely distinct domains, not one continuous gradient. A classic mahogany stone shifts gradually from black to brown; a tri-flow stone shows readable boundaries;
  • Boundaries are never straight lines, they ripple, following the movement of the lava. A perfectly straight, sharp edge is a sign of an assembled or glued doublet;
  • All three zones should have the same polish quality, a marked contrast in shine can signal glued pieces;
  • Ask for a view of the cut edge, the zones should continue through the thickness of the stone, not just on the surface.

On price, there's no established market rate: it's too niche a market. Treat it like a fine-quality mahogany obsidian, with a reasonable premium for the pattern's rarity, and be wary of prices pegged to fire obsidian, which is nowhere near as rare in comparison. My benchmarks are in obsidian pricing and value.

Mineral data sheet

Nature
Natural volcanic glass (mineraloid, amorphous)
Other names
Tri-flow obsidian, three-flow obsidian, tricolor obsidian
Color
Black, reddish-brown, and a variable third zone (golden, pale, or translucent)
Source of the pattern
A cross-section through several domains of a single flow
Status
A name with no fixed definition, the vaguest in the family
Composition
Silicon dioxide (SiO₂), iron oxides, variable inclusions
Hardness (Mohs)
About 5 to 5.5, varying by zone
Sources
Mexico and the United States, depending on the flow
Commercial form
Individually cut pebbles and cabochons
Chakras
Root, with extensions depending on which zones are present
Age of the tradition
Recent: a modern lapidary trade name

Care and cleansing

One quirk here: since the three zones don't share exactly the same composition, they don't react identically. So treat the stone according to the care needs of its most fragile zone.

  • Cleaning, a soft, dry cloth. If the stone has crystallized zones, they're softer and scratch faster;
  • Cleansing, smudging is preferable. Oxidized zones, richer in iron, don't tolerate acids well: no vinegar or lemon. Avoid salt;
  • Recharging, moonlight, without prolonged sun exposure;
  • Impacts, the boundaries between domains can be lines of weakness. Handle the stone with care and store it alone.

Full step-by-step care is in my guides to cleaning obsidian and cleansing and recharging.

Worth knowing, the properties described here belong to crystal healing, a wellness practice grounded in traditions and beliefs. They are not a medical claim, do not treat any condition, and never replace the advice of a health professional. See also obsidian safety and precautions.

Frequently asked questions

What is tri-flow obsidian?
An obsidian showing three distinct zones within a single block, most often black, reddish-brown mahogany, and a variable third zone. It comes from a cross-section through several domains of a lava flow.
Is tri-flow an official variety?
No. It's a lapidary trade name with no fixed definition: depending on the seller, it covers different combinations. The only common thread is the coexistence of three distinct looks in one piece.
Why does one flow produce several stones?
Because it's never uniform: cooling speed, iron oxidation, gas bubble content, and lava mixing all vary from point to point, sometimes within a few centimeters. Each domain becomes a different "variety."
Does tri-flow obsidian combine the properties of three varieties?
That's often claimed, but it comes from analogical reasoning, not an established tradition. If a specific correspondence matters to you, it's better to choose that variety directly.
How do you spot a glued assembly?
Natural boundaries ripple and follow the movement of the lava, they're never straight lines. A perfectly straight edge, or a marked contrast in shine between zones, should raise a flag. Ask for a view of the cut edge.
How much does tri-flow obsidian cost?
There's no established market rate, since the market is too niche. Treat it like a fine-quality mahogany obsidian, with a reasonable premium for the pattern's rarity. Be wary of prices pegged to fire obsidian.
Born from volcanic fire

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