This exceptional piece of fire agate rough from the El Cerrito mine in Aguascalientes, Mexico, measures 31.46 x 24.07 x 13.51 mm and weighs 54.4 carats, making it a significant specimen for collectors and lapidary artist alike. Its intricate windowed structure reveals a vibrant, multi-hued fire pattern featuring gemmy bands of green, gold, orange, purple, and subtle hints of blue. These bands create a captivating display of colors that shift beautifully with changes in light and perspective. This piece exemplifies the unique beauty and complexity characteristic of fine fire agate, ideal for adding a rare and dynamic element to any collection or high end jewelry design after cutting.
This fire agate, locally referred to as Ágata de Fuego, comes from the Calvillo area in Aguascalientes, Mexico, a region esteemed for its production of exceptional fire agates. These gemstones are highly regarded for their vibrant color displays and intricate mixed color variations that capture the natural beauty unique to this locale. Weighing 54.4 carats, this rough windowed specimen offers collectors and connoisseurs a captivating example of the complex patterns and fiery iridescence that make Aguascalientes fire agates prized among gem enthusiasts. Its origin and distinct visual qualities emphasize its value both as a specimen and as a material for fine jewelry.
The photographs shown highlight the stone’s exceptional brilliance under both artificial full spectrum indoor lighting and natural sunlight, shown dry and wet to mimic a polished surface and reveal its internal fire layers. The vibrant colors within fire agates arise from the Schiller effect, like what is seen in mother-of-pearl and opals. This phenomenon results from alternating layers of silica and iron oxide that diffract light, creating the interference patterns known as fire. Optimal lighting enhances this color play, while in dimmer conditions the fire agates may appear less vivid and appear darker with a brownish hue.
This gemstone is a natural specimen and may exhibit typical imperfections inherent to its formation or arising from the rigors of the hard rock mining extraction process.
Photographs Copyright © 2025 Fire Agate US. All Rights Reserved.
