Bolivian Ametrine A-Grade Hydrothermal Etched New Find- Anahí Mine | River Walkers Minerals

A substantial and highly expressive ametrine specimen from a recent, low-yield discovery. This piece is notable for its strong color saturation, heavily etched surfaces, and overall structural preservation. Pieces of this quality and size are uncommon, particularly in modern finds.

Formation & Geology:

Ametrine forms when quartz crystals grow under finely balanced thermal conditions, allowing iron impurities to express both amethyst and citrine color centers within the same crystal lattice. These conditions are geologically rare and uniquely documented at Bolivia’s Anahí Mine.

This specimen shows extreme hydrothermal etching, the result of super hot fluids re-entering the environment after crystallization.

Rarity & Mining Context:

• The vast majority of ametrine is cut for the gem trade, not preserved as natural crystals.
• Whole, etched ametrine specimens are therefore exceptionally difficult to obtain.
• Recovery occurs only in the deepest, most challenging sections of the mine.
• Production of etched specimens is extremely limited, often totaling just one or two per mining season.

Provenance:

This piece comes directly from the mine, obtained through the sole individual currently exporting this new material. He is my direct contact from this mine and at present, the only person importing these etched specimens internationally. The material was shipped from Bolivia to Canada and then to me in the United States without passing through any secondary dealers

Weight: 303 g

Dimensions: 5 × 2.3 × 1.8 in

Locality: Bolivia (Anahí Mine region)