Asked by big gieger
what is the 5 criteria that minerals must have
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GPT-5 mini
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A mineral must meet five criteria:
1. Naturally occurring — formed by natural geologic processes (not man-made).
2. Solid — stable as a solid under normal Earth-surface conditions.
3. Inorganic — not produced by biological processes (though a few organic compounds are classified as minerals in special cases).
4. Definite chemical composition — a specific chemical formula or a restricted range of compositions.
5. Ordered internal crystal structure — atoms are arranged in a repeating, three-dimensional pattern (crystalline).
Example: quartz (SiO2) satisfies all five. Note: substances lacking a crystal structure (e.g., opal) are called mineraloids, and some rare organic substances can be classified as minerals by convention.
1. Naturally occurring — formed by natural geologic processes (not man-made).
2. Solid — stable as a solid under normal Earth-surface conditions.
3. Inorganic — not produced by biological processes (though a few organic compounds are classified as minerals in special cases).
4. Definite chemical composition — a specific chemical formula or a restricted range of compositions.
5. Ordered internal crystal structure — atoms are arranged in a repeating, three-dimensional pattern (crystalline).
Example: quartz (SiO2) satisfies all five. Note: substances lacking a crystal structure (e.g., opal) are called mineraloids, and some rare organic substances can be classified as minerals by convention.
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