The color of a mineral's streak is not always the same as the color of the mineral sample, as shown in Figure 4. Unlike the surface of a mineral sample, the streak is not affected by weathering. For this reason, streak is more reliable than color as an indicator of a mineral's identity.
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The color of a mineral's streak is not always the same as the color of the mineral sample, as shown in Figure 4. Unlike the surface of a mineral sample, the streak is not affected by weathering. For this reason, streak is more reliable than color as an indicator of a mineral's identity.
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