5 Most Commonly Misidentified Crystals

Geology Team
Jan 22, 2024
5 min read

Crystal identification can be tricky, even for experienced collectors. Here are the five most commonly confused pairs—and how RockAI's AI helps you get it right.

1. Amethyst vs. Fluorite: Both are purple, but amethyst has a vitreous luster while fluorite is often more translucent with a glassy appearance.

2. Citrine vs. Heat-Treated Amethyst: Most "citrine" sold commercially is actually heated amethyst. RockAI analyzes color gradients to detect the difference.

3. Quartz vs. Calcite: They look similar, but their crystal structures are completely different. Our AI examines geometric patterns to classify them accurately.

4. Pyrite vs. Gold: The classic "fool's gold" problem! RockAI checks surface texture and reflectivity patterns to distinguish real gold from pyrite.

5. Obsidian vs. Black Tourmaline: Both are dark and glossy, but obsidian is volcanic glass while tourmaline is a crystalline mineral. RockAI identifies the subtle differences instantly.

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