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The mineral lead leaves a streak on a piece of pottery, but the mineral topaz does not. Which mineral has a greater hardness? answers; They have the same hardness, lead, topaz
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The mineral lead leaves a streak on a piece of pottery, but the mineral topaz does not. Which mineral has a greater hardness? answers; They have the same hardness, lead, topaz

User AndyV
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Answer:

The answer would be topaz

User AVC
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