2.30 ct 2 pc LINARITE ON QUARTZ – USA

Linarite

Another strikingly beautiful crystal in electric blue—the kind of blue that seems to hum with its own energy. Linarite is often mistaken for Azurite at a glance, but its hue is even more intense, possessing a “neon” quality that is rare in the mineral kingdom. Because these crystals are typically found as thin blades or minute crusts, they are usually far too small for traditional faceting. To capture that incredible color, we used our matrix faceting method for this amazing gem as well. By precisely polishing the faces of these micro-crystals while they remain anchored in their host rock, we’ve created a window into a world of electric blue that would otherwise be impossible to wear or display as a gemstone.

The Heritage & Discovery

Historical Significance: Linarite is a secondary lead copper sulfate that represents a very specific geochemical “sweet spot” where lead and copper oxidize together. Historically, it has been a prized specimen for its aesthetic brilliance rather than its ore value. It serves as a colorful marker of the oxidation zones in complex sulfide deposits, often found alongside other secondary favorites like Malachite or Cerussite. For the collector, it is the ultimate “blue” silicate-sulfate, offering a saturation that rivals even the finest sapphires, though in a much more delicate form.

Discovery: The mineral was first described in 1822 and was named after its type locality in the Linares Plateau in Andalusia, Spain. It was identified during the study of the region’s ancient lead and copper mines, which date back to Roman times. Since its discovery, it has been a staple of systematic mineralogy, though always a challenge for the lapidary due to its softness and rarity in large crystals.

Important Mines: While the original Spanish material is historic, the most spectacular “electric blue” crystals often come from the Grand Reef Mine in Arizona, USA, and the Blanchard Mine in New Mexico. Other world-class specimens have emerged from the Tsumeb Mine in Namibia. We specifically look for matrix specimens from these arid, high-oxidation environments because the host rock provides a neutral backdrop that makes the neon blue of the Linarite pop with maximum intensity.

Mineralogical Profile

Description: Linarite is a basic lead copper sulfate that crystallizes in the monoclinic system. It is a very soft mineral, sitting at a 2.5 on the Mohs scale, and is known for its vitreous to sub-adamantine luster. It typically forms as elongated, prismatic crystals or thin tabular blades. Its color is its most defining trait—a deep, vibrant azure to electric blue that is far more intense than most other copper-bearing minerals. Because it is brittle and soft, the matrix faceting technique is the only way to preserve its sharp, crystalline edges while allowing the light to enter and reflect off its internal planes.

Chemical Formula: PbCu(SO₄)(OH)₂