Natural Alluvial Gold Flakes and Flour Gold in Black Sand Concentrate

Raw Gold (dust, flakes, and flour gold) · Natural Yellow Gold. The color is a deep, rich buttery yellow, which is characteristic of high-purity native gold that has had surface impurities leached away by water.

Purity: Likely 20K to 23K (83% - 96% purity). Natural gold found in alluvial deposits is rarely 24K pure as it is naturally alloyed with silver and copper during formation.

Natural Alluvial Gold Flakes and Flour Gold in Black Sand Concentrate

Type

Raw Gold (dust, flakes, and flour gold)

Purity

Likely 20K to 23K (83% - 96% purity). Natural gold found in alluvial deposits is rarely 24K pure as it is naturally alloyed with silver and copper during formation.

Gold Type

Natural Yellow Gold. The color is a deep, rich buttery yellow, which is characteristic of high-purity native gold that has had surface impurities leached away by water.

Weight

Estimated 0.5 to 2.0 grams based on visible surface area. In a gold pan, a 'strong showing' of flour gold like this often represents a small fraction of a troy ounce.

Description

A stunning 'tail' of fine alluvial gold resting in the crease of a blue plastic gold pan. The gold is accompanied by heavy black sand concentrates (magnetite), which indicate a successful 'clean up' phase of prospecting. The visual shows a high concentration of fine particles, often referred to as 'color' in the bottom of the pan.

Key Features

High density settling, 'tailing' effect in the pan, distinct yellow contrast against blue plastic and black magnetite sand.

Color & Finish

Vivid high-luster yellow with a natural metallic sheen. The 'finish' is naturally water-worn, showing rounded edges on larger flakes and a microscopic granular texture on the 'gold flour'.

Hallmarks & Stamps

None. As raw, unrefined mineral specimens, there are no government assay marks or maker stamps.

Dimensions Estimate

Flakes range from 0.5mm to 1.5mm (sub-millimeter 'flour' gold). The concentrate strip shown in the pan is approximately 4-6 inches in length.

Gemstones & Inlays

None, though naturally occurring heavy minerals like magnetite, hematite (black sands), and potentially garnets are present in the matrix.

Clasp & Closure

Not applicable. Raw minerals.

Chain & Links

Not applicable. Individual distinct particles.

Craftsmanship Details

Natural water-erosion craftsmanship. The particles are smoothed and flattened by the hydraulic action of river currents and tumbling rocks over centuries.

Authentication Indicators

The way the gold 'hangs' in the corner of the pan despite the water flow indicates its high specific gravity (approx. 19.3). Pyrite or mica (fool's gold) would wash away more easily.

Origin & Maker

Natural origin; typically found in placer deposits in regions like California, Alaska, the Klondike, or Australia. The 'maker' is geological erosion.

Era & Period

Geological/Contemporary Recovery. This represents gold recently extracted from a stream or river bed through artisanal or recreational prospecting.

Age Estimate

The gold itself is millions of years old; the recovery is modern (21st century).

Cultural Significance

Represents the 'Gold Rush' heritage and the enduring human drive for prospecting and mineral discovery.

Condition Notes

Placer gold in raw, uncleaned state. Includes associated mineral sands. Grade: Raw Mineral Specimen.

Value Estimate

Mainly 'spot price' melt value minus refining costs, approximately $50 - $150 USD depending on the total dry weight and current market rates for 22K raw gold.

Care & Maintenance

Store in a glass 'sniffer' bottle or vial. Can be cleaned with a mild solution of dish soap to remove natural oils or dirt; avoid harsh chemicals that might dissolve associated minerals if kept as a specimen.

Similar Items

Gold nuggets (larger), gold bullion (processed), or 'Fool's Gold' (iron pyrite which is brittle and lighter).

Interesting Facts

Gold flour is so fine that it can actually float on the surface tension of water if it becomes dry, requiring 'wetting agents' or 'Jet Dry' to keep it submerged during panning.

Identified on 4/20/2026
Natural Alluvial Gold Flakes and Flour Gold in Black Sand Concentrate | Gold Identifier