Exceptional Fire Opal "Dragon Egg" - Mexico 20.12 carats - NO RESERVE PRICE - Height: 20 mm - Width: 16.6 mm- 4.02 g - (1)

Discover this exceptional 20.12-carat Mexican fire opal, a magnificent natural gemstone distinguished by its fiery colors, remarkably vivid translucent areas, and fascinating mineral matrix patterns.

This piece features a particularly appealing composition, combining stunning concentrations of incandescent orange and golden amber opal with a natural cream-white matrix, delicately flecked with reddish and brown hues.

One of its most remarkable features is its large areas of translucent opal, visible in particular in the upper section and at the lower end. In the light, they reveal spectacular chromatic depth, shifting between luminous orange, golden honey, and orangey red.

The upper section also reveals fascinating internal structures and fine natural lines that seem to run through the translucent material, creating an almost sculptural visual effect.

Its generous, carefully polished oval shape particularly enhances this combination of colors and textures. The light-colored matrix seems to envelop the incandescent opal areas, creating a highly original natural composition.

At a remarkable 20.12 carats, this gemstone has a particularly striking visual presence.

Mexico, the historic home of fire opals, is renowned worldwide for its gems with warm, intense colors. From pre-Columbian civilizations to major contemporary mineral collections, Mexican opals have captivated people with their beauty and volcanic origins.

Specimens combining rich orange saturation, pronounced translucency, and an attractive natural matrix are especially sought after for their distinctive character.

A sumptuous Mexican fire opal, a true meeting of light, color, and material, whose incandescent hues seem to imprison a fragment of fire in the heart of the rock.


Technical Specifications

- Name: Mexican fire opal in natural matrix
- Type: Natural opal with matrix
- Origin: Mexico
- Weight: 20.12 carats
- Dimensions: 20 × 16.6 × 8.3 mm
- Shape: Oval
- Cut: Polished cabochon
- Main color: Incandescent orange and golden amber
- Secondary colors: Orangey red, honey, brown, and cream white
- Transparency: Translucent opal areas, opaque matrix
- Luster: Vitreous to resinous
- Distinguishing feature: Large concentrations of translucent orange opal within a light-colored natural matrix, with visible internal structures
- Hardness: Approximately 5.5 to 6.5 on the Mohs scale
- Treatments: Undetermined
- Intended use: Gem collection, mineralogy, creative jewelry, and ornamental stone


Mexico – The Historic Home of Fire Opals


Mexico holds a prestigious place in the history of gemology worldwide, particularly thanks to its famous fire opals.

These fascinating stones have been known for several centuries and were valued by Mesoamerican civilizations long before the arrival of Europeans.

The Aztecs knew of certain opals, which they used in ornamental objects and decorative creations.

In the Nahuatl language, the term quetzalitzlipyollitli, often interpreted as “stone of the bird of paradise,” bears witness to the cultural significance attributed to these gems.

Their luster, color, and distinctive appearance made them especially prized materials.

In the 19th century, commercial mining of Mexican opals expanded considerably, particularly in the Querétaro region.

This region gradually became one of the most renowned historic centers for fire opal production.

The deposits in Querétaro, along with those in Jalisco and other volcanic regions of Mexico, helped establish these stones’ international reputation.

Unlike Australian opals, often famous for their multicolored play of color, Mexican fire opals are especially prized for their body color.

Their hues range from pale yellow to deep red, passing through honey, golden orange, and incandescent orange.

Specimens with intense colors and attractive translucency are among the most highly prized.

Stones retaining an attractive natural matrix are also of particular interest to collectors, as they showcase the relationship between the gem and its mineral surroundings.

Today, Mexico remains an iconic and prestigious source of fire opals, whose exceptional colors continue to captivate gem enthusiasts around the world.

This magnificent 20.12-carat opal is very much part of this gemological tradition.


An Exceptional Birth in the Heart of Ancient Volcanic Formations


The geological history of Mexican fire opals dates back several million years.

Their formation is closely linked to the intense volcanic activity that shaped many regions of Mexico.

During these geological episodes, silica-rich volcanic rocks gradually formed.

Over time, silica-rich water circulated through fractures, cavities, and porous areas in these formations.

When the physicochemical conditions were favorable, hydrated silica could gradually deposit in these spaces.

These accumulations gave rise to opal, a fascinating mineral material whose optical properties depend in particular on its internal structure and composition.

The famous orange, yellow, and red colors of fire opals are generally associated with the presence of iron compounds and their interaction with light.

Under certain conditions, opal can develop a particularly intense body color.

Its brightest hues then seem to radiate from within the stone itself.

When opal forms in a cavity or rock fracture, it can remain closely associated with its natural matrix.

This association gives rise to specimens of great aesthetic richness.

In this piece, the translucent orange areas appear within a light-colored matrix, creating a particularly expressive composition.

The transitions between the different materials, the inclusions, and the internal structures attest to the complexity of its formation.

A true creation of nature, shaped over geological time by water, silica, and volcanic activity.


Exceptional Color – Between Incandescent Orange and Luminous Amber


Color is one of the main attractions of this remarkable opal.

Its surface features several opal areas in particularly warm hues.

The upper section reveals a large concentration of golden orange, whose translucency allows the depth of the material to be seen.

In the light, this area evokes ancient amber, with honey and intense orange reflections.

Fine internal structures run through the translucent section, forming delicate lines and particularly interesting irregular patterns.

Some of these structures appear to form small branching shapes, enhancing the impression of depth.

The lower section features a second opal area in more saturated colors.

Its orangey red and incandescent orange hues create a spectacular contrast with the surrounding matrix.

Between these two concentrations, the cream-white matrix reveals a multitude of small mineral details.

Brown, reddish, and orange flecks dot its surface, creating a complex natural texture.

The juxtaposition of these different colors gives the stone an almost painterly appearance.

Each area has its own identity, yet together they form a particularly harmonious composition.

A fascinating color palette in which fiery orange, golden amber, and light mineral hues come together in exceptional natural harmony.


The Fascinating Beauty of Fire Opals in Natural Matrix


Fire opals in matrix have a special charm.

Unlike gems that have been completely separated from their host rock, they retain part of their mineral surroundings.

This feature gives them both an aesthetic and a geological dimension.

The matrix plays a full part in the stone’s identity.

Its textures, colors, and irregularities enhance the opal concentrations it surrounds.

Each specimen therefore has a unique arrangement of its various mineral areas.

This 20.12-carat opal is a particularly fine example of this natural richness.

Its light-colored matrix forms a delicately speckled envelope around several translucent areas.

The opal concentrations seem to emerge through small, irregular openings, as if light were passing through the rock from within.

The upper section features a complex composition, with several orange areas separated by fine mineral structures.

The lower section offers a different contrast, defined by a more reddish concentration of opal.

This diversity gives the stone a particularly distinctive character.

The polished surface makes it possible to appreciate the transitions between the materials and discover the many details of the composition.

For collectors, this type of specimen offers additional appeal: it allows them to admire not only the color of the opal, but also its association with the accompanying rock.


A Remarkable Weight of 20.12 Carats


At 20.12 carats, this opal has particularly appealing proportions.

Its dimensions of 20 × 16.6 × 8.3 mm give it a generous oval shape, ideally suited to showcasing its various colored areas.

Its polished surface provides a clear view of the natural composition.

The large golden-orange area in the upper section immediately draws the eye.

The many small inclusions and internal structures add further visual richness.

The cream-white matrix provides a luminous contrast, while the lower orangey-red area completes the composition.

Its 8.3 mm thickness also makes it possible to appreciate the stone’s volume and the depth of some of its translucent parts.

This combination of size, color, and texture makes it a particularly interesting piece for a natural gemstone collection.

It could also be considered for an original jewelry design, with a setting specially crafted to preserve and showcase its structure.


A Distinctive Piece for Discerning Collectors


Mexican fire opals hold a special place in the world of fine gemstones.

Their history, colors, and volcanic origins give them an instantly recognizable identity.

Specimens with intense orange color and pronounced translucency are valued for their visual qualities.

Opals in matrix add another dimension through their natural compositions.

This piece brings together several remarkable aesthetic features.

Its weight of 20.12 carats gives it a striking presence.

Its large orange and amber opal areas offer appealing chromatic depth.

The light-colored matrix creates a particularly successful contrast.

The visible internal structures in the translucent areas enhance its natural character.

Finally, its polished oval shape makes it possible to appreciate all its distinctive features.

It is therefore an original collector’s piece, intended for lovers of Mexican opals, natural gemstone enthusiasts, and collectors drawn to the beauty of mineral formations.


Conclusion – A Sumptuous 20.12-Carat Mexican Fire Opal


This exceptional 20.12-carat Mexican fire opal, measuring 20 × 16.6 × 8.3 mm, captivates with its rich colors and the originality of its natural composition.

Its large incandescent orange and golden amber areas reveal attractive translucency, while its cream-white matrix, delicately speckled with brown and reddish hues, creates a spectacular contrast.

The visible internal structures, chromatic variations, and distinctive arrangement of the opal concentrations attest to the complexity of its geological history.

Its Mexican origin links it to one of the world’s most prestigious fire opal-producing traditions, the legacy of centuries of history and fascination with these flamboyant gems.

A magnificent collector’s piece, combining the intensity of fire, the depth of amber, and the authentic beauty of a natural mineral formation.




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