Popular gemstones and minerals with their hardness, color, and one identifying property, one stone per card.
41 cards · basic cards · AI-written, checked twice. Edit anything.
- Diamond - what is its hardness on the Mohs scale?
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10
- What color is diamond typically?
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Colorless, though fancy colors exist
- What is diamond's key identifying property?
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Exceptional brilliance and light dispersion
- Ruby - hardness on the Mohs scale?
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9
- What color is ruby?
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Red
- Ruby is the red variety of which mineral?
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Corundum
- Sapphire - hardness on the Mohs scale?
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9
- What is the most common color of sapphire?
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Blue
- Sapphire is a variety of which mineral?
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Corundum
- Emerald - hardness on the Mohs scale?
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7.5 to 8
- What color is emerald?
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Green
- Emerald is the green variety of which mineral?
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Beryl
- Amethyst - hardness on the Mohs scale?
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7
- What color is amethyst?
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Purple or violet
- Amethyst is a purple variety of which mineral?
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Quartz