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Fire Agate US

Fire Agate Rough 10 Preforms 117 Grams Mixed Gemstones PRE001

Fire Agate Rough 10 Preforms 117 Grams Mixed Gemstones PRE001

Regular price $175.00 USD
Regular price Sale price $175.00 USD
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This collection includes ten expertly trimmed fire agate rough preforms, weighing a total of 117.49 grams (587 carats) and ranging from 19mm to 38mm in size. Each piece reveals vibrant fire layers with a range of colors, some partially polished to highlight their internal structure. Sourced from Slaughter Mountain, Deer Creek, and Mexico, these stones are ideally prepared for final gemstone carving, promising excellent quality fire agate gems when skillfully cut.

The individual stones measure and weigh:

Mexican – 23.5 carats, 18 x 15 x 9 mm

Slaughter 1 – 96 carats, 38 x 26 x 17 mm

Slaughter 2 – 66 carats, 33 x 25 x 10mm

Slaughter 3 – 58 carats, 34 x 30 x 6 mm

Slaughter 4 – 56 carats, 33 x 24 x 11 mm

Slaughter 5 – 56 carats, 31 x 19 x 11 mm

Deer Creek 1 – 101 carats, 41 x 38 x 12 mm

Deer Creek 2 – 54 carats, 34 x 26 x 6 mm

Deer Creek 3 – 37 carats, 26 x 20 x 6 mm

Deer Creek 4 – 38 carats, 21 x 18 x 10 mm

Photographs of these fire agate preforms were taken both indoors under artificial lighting and outdoors in natural sunlight, with the stones shown dry and wet to mimic a polished surface and enhance the visibility of their internal fire. Close-up magnifications are included to better reveal the intricate fire layers within the stones.

The vivid colors in fire agates result from the Schiller effect, similar to that seen in mother-of-pearl and opals. This phenomenon arises from alternating silica and iron oxide layers that diffract light, creating the color interference known as fire. Optimal light conditions are necessary to fully appreciate this play of color, as the gems appear darker and less vibrant in dim lighting.

These pieces are 100% natural rocks and may be subject to normal flaws as found in nature or the result of hard-rock mining extraction (cracks, chips, etc).

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Slaughter Mountain Fire Agate Information

Slaughter Mountain is famed for producing exceptionally vibrant fire agate gemstones, celebrated for their mesmerizing play of color and intricate internal fire. The stones from Slaughter are a treasure trove of beauty for collectors and carvers which prize this locality for its mesmerizing gems, high quality rough and exquisite specimens.

Slaughter Mountain fire agates often features multiple stacked layers of limonite fire banding, which when cut creates dynamic flashes of vibrant red, orange, green, purple, and even electric blue fire displays.

The all-natural rough mineral specimens often feature wonderful druzy quartz crystal formations which add sparkle and texture to the stone’s surface. Some pieces also have a protective chalcedony cap which preserves the vivid fire layers beneath and enhances the carving potential. These natural features make Slaughter Mountain fire agate ideal for lapidary artists who seek material that allows for deep carving and a high contrast polish which reveals the stone’s full spectrum of fiery brilliance.