QuestionAugust 22, 2025

Strotegle Thinking 7. Imagine you found a mineral that scratches glass but is scratched by a steel nall. Based on the Mohs Hardness Scalo concapt,what can you infer about the mineral's square approximate hardness?Explain your reasoning. Simple Reasoning 8. Explain how the streak test helps in Identifying minerals especially when dealing with minerals that come in various colors, Use an example from the text to illustrate your explanation.

Strotegle Thinking 7. Imagine you found a mineral that scratches glass but is scratched by a steel nall. Based on the Mohs Hardness Scalo concapt,what can you infer about the mineral's square approximate hardness?Explain your reasoning. Simple Reasoning 8. Explain how the streak test helps in Identifying minerals especially when dealing with minerals that come in various colors, Use an example from the text to illustrate your explanation.
Strotegle Thinking
7. Imagine you found a mineral that scratches glass but is scratched by a steel nall.
Based on the Mohs Hardness Scalo concapt,what can you infer about the mineral's
square 
approximate hardness?Explain your reasoning.
Simple Reasoning
8. Explain how the streak test helps in Identifying minerals especially when dealing with
minerals that come in various colors, Use an example from the text to illustrate your
explanation.

Solution
4.0(277 votes)

Answer

1. Determine hardness using Mohs scale ### Glass has a hardness of about 5.5 on the Mohs scale, and steel nail is typically around 6.5. If the mineral scratches glass but is scratched by a steel nail, its hardness is between 5.5 and 6.5. # Answer: ### The mineral's approximate hardness is between 5.5 and 6.5. --- # Explanation: ## Step1: Define streak test purpose ### The streak test identifies minerals by the color of their powdered form, which is more consistent than the color of the mineral itself. ## Step2: Example application ### For example, hematite can appear in various colors like red or black, but its streak is consistently reddish-brown, aiding identification. # Answer: ### The streak test helps identify minerals by providing a consistent color for comparison, regardless of the mineral's surface color variations.
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