Gold Identifier —
Is This Real Gold?
Upload a photo of your gold specimen, nugget, jewellery, or ore. Our AI screens for pyrite (fool’s gold), chalcopyrite, mica, and other common look-alikes — giving you a gold likelihood verdict with confidence scoring in seconds.
What You Get in Every Result
- Gold likelihood verdict — Definite / Very Likely / Possible / Unlikely / Definitely Not
- Confidence percentage with full visual reasoning
- Look-alike identification — pyrite, chalcopyrite, mica, brass
- Purity estimate from hallmarks if visible
- Key physical properties — colour tone, luster, specific gravity context
- Common global locations for native gold deposits
- Practical next steps — streak test, acid test, assay office advice
- Alternative identifications with individual confidence scores
Gold Identifier
Upload sharp photos with scale — colour, crystal shape, streak, and heft help separate native gold from pyrite, chalcopyrite, and mica. AI screening only; not a lab assay.
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Upload up to 3 angles for the most accurate result
Description
Origin / formation
Hardness (Mohs)
Luster
Rarity
Relative value
Notable localities / regions
Typical colours
Key properties
Similar look-alikes
Alternative identifications
What Our Gold Identifier Analyses
Native gold has a unique combination of colour, weight, malleability, and form that distinguishes it from even the most convincing look-alikes. When you upload a photo, the AI examines the specific visual properties that separate genuine gold from fool’s gold and other common imposters.
What photos cannot determine
Specific gravity is the most reliable single test for gold — gold’s extraordinary density (SG 19.3) means a gold nugget feels surprisingly heavy for its size. This cannot be assessed from a photograph. Similarly, the streak test and acid test require physical contact with the specimen. Our tool provides a strong visual screening — for specimens of potential significant value, a professional assay is always the definitive answer.
Gold Look-Alikes — The Full Picture
Gold has fooled prospectors, collectors, and buyers for centuries. Understanding exactly what each look-alike is and how it differs helps you interpret your result and know what follow-up tests to perform.
| Look-Alike | Mineral / Material | Colour | Key Tell | Streak Colour |
|---|---|---|---|---|
| Pyrite (Fool’s Gold) | Iron Sulfide (FeS₂) | Brassy yellow | Perfect cubic crystals; striated faces; brittle | Black / dark grey |
| Chalcopyrite | Copper Iron Sulfide | Brassy, iridescent | Tarnishes to purple and blue; more iridescent than gold | Greenish black |
| Mica (Muscovite) | Silicate mineral | Pale gold, silver | Thin flexible flakes; very lightweight; pearly luster | White / colourless |
| Pyrrhotite | Iron Sulfide (FeS) | Bronze-yellow | Magnetic — strongly attracted to a magnet | Dark grey-black |
| Brass / Gold-Plated | Copper-zinc alloy | Bright yellow | Uniform, manufactured edges; may show wear exposing base metal | N/A — metal |
| Yellow Tourmaline | Borosilicate mineral | Golden yellow | Glassy luster; striated prismatic crystals; not metallic | White |
“The single most reliable visual test for gold is crystal form — or rather its absence. Gold never forms perfect geometric crystals. If your yellow specimen has sharp cubic faces, perfect angles, or geometric symmetry, it is almost certainly pyrite.”
Forms of Gold Our AI Identifies
Native gold and gold-bearing materials occur in several distinct forms in nature, each with different visual properties. Our AI identifies which form you are likely looking at alongside the gold likelihood assessment.
Gold Hallmarks — Reading Purity Stamps
If your gold specimen is jewellery, a coin, or a bar, it likely carries a hallmark stamp indicating purity. Our AI reads visible hallmarks from your photo and explains what they mean. Here is a quick reference to the most common systems:
Gold-filled and gold-plated — not the same as solid gold
Gold-filled (GF) and gold-plated (GP or GEP) items are base metals coated with a thin gold layer. Hallmarks like “1/20 14K GF” or “GP” indicate this. Our AI flags when a specimen’s surface appearance, wear patterns, or visible base metal are inconsistent with solid gold. For definitive purity testing, an XRF test at a jeweller or assay office is required.
At-Home Gold Tests — What Works and What Doesn’t
Several methods are commonly suggested for testing gold at home. Here is an honest assessment of each — which are reliable, which are partially useful, and which are myths:
Where Native Gold Is Found
Native gold occurs in two primary geological environments, each producing specimens with different visual characteristics. Knowing where your specimen came from is one of the most useful pieces of context you can provide to the AI.
- Alluvial / Placer deposits. Gold eroded from primary rock and transported by water, concentrating in river gravels and sands. Produces rounded nuggets, flakes, and dust. Countries with major placer gold include Australia (Victoria, Western Australia), USA (California, Alaska), and Russia. Placer gold is typically very pure — 85–98% gold.
- Lode / Hard rock deposits. Gold still in its original host rock, typically as veins in quartz or in association with sulfide minerals. Produces specimens with gold in quartz matrix, dendritic gold, and wire gold. Famous lode gold regions include the Witwatersrand (South Africa), Nevada (USA), and Ontario (Canada).
- Epithermal deposits. Formed at shallow depths from hydrothermal fluids. Often associated with volcanic regions. Gold occurs as fine grains within altered rock rather than visible nuggets. Common in Papua New Guinea, the Philippines, and parts of South America.
- Alluvial beach deposits. Black sand beaches in some regions contain gold-bearing heavy mineral sands. New Zealand’s West Coast and parts of Alaska are notable examples. Gold in these environments is very fine-grained.
Providing location improves accuracy significantly
When you enter where you found your specimen in the optional context field, the AI uses geological probability to refine its assessment. A yellow metallic specimen found in an Australian goldfield river gravel is statistically much more likely to be gold than an identical-looking specimen from a non-gold-bearing region. Location context is the single most powerful optional input you can provide.
Frequently Asked Questions
Found Something Yellow and Shiny?
Upload your photo above for an instant AI assessment — or explore our other identifier tools below.
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