How-To Guides

Gold Testing Methods: 5 Ways to Know If It's Real

JJake LawsonJanuary 30, 20262 min read

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You found something shiny in your pan. But is it gold? Here are 5 tests I use in the field and at home to know for sure.

# Gold Testing Methods: 5 Ways to Know If It's Real

You found something shiny in your pan. Your heart's racing. But is it actually gold? Here are 5 tests I use to know for sure.

Test 1: The Scratch Test

What You Do: Drag the specimen across unglazed porcelain (like a tile back or streak plate).

Results:

  • Gold leaves a gold/yellow streak - Good sign
  • Black streak - Pyrite (fool's gold)
  • Greenish-black streak - Chalcopyrite

My Take: Quick first test, but not definitive. I use this for fast field sorting.

Test 2: The Magnet Test

What You Do: Hold a strong rare earth magnet near the specimen.

Results:

  • No attraction - Could be gold (gold isn't magnetic)
  • Sticks to magnet - Definitely not gold (iron pyrite often is)

My Take: Good for eliminating obvious fakes. Real gold will never stick.

Test 3: The Acid Test

What You Need: Gold testing acid kit (nitric acid + other acids)

How It Works:

1. Scratch specimen on touchstone

2. Apply acid to the scratch mark

3. True gold resists acids; fakes dissolve or change color

Safety First: Use gloves and eye protection. Work outdoors or in ventilated area.

My Take: The most reliable field test. A 0 kit pays for itself the first time you avoid buying fake "gold."

Test 4: Specific Gravity Test

What You Do: Weigh specimen dry, then suspended in water. Calculate specific gravity.

The Math:

  • Specific Gravity = Dry Weight ÷ (Dry Weight - Suspended Weight)

Results:

  • Pure gold: 19.3
  • Quartz with gold: 10-15 (depending on gold content)
  • Pyrite: 5.0
  • Chalcopyrite: 4.2

My Take: Most accurate test without lab equipment. Essential for specimens in quartz.

Test 5: The Bite Test (Don't Actually Do This)

You've seen it in movies—biting gold. Real gold is soft and will show tooth marks. But please don't do this. You'll damage your gold AND potentially your teeth.

What I Actually Do

In the field:

1. Visual check - Color, shape, location

2. Magnet test - Quick elimination

3. Scratch test - Fast streak check

At home:

4. Acid test - Confirmation

5. Specific gravity - For quartz specimens

The #1 Sign It's Gold

Where you found it. Gold in a known gold-bearing creek? Probably gold. Gold in random dirt? Test it carefully. Location matters more than any single test.


Jake has tested thousands of specimens over 22 years. He still gets excited about every new piece—after he tests it.