A streak plate may be used to identify which mineral property?(1 point)
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A streak plate is commonly used to identify the mineral property known as "streak." Streak refers to the color of the powdered mineral when it is scraped across the streak plate. To use a streak plate for identification, you need to follow these steps:
1. Obtain a streak plate: A streak plate is a small, unglazed ceramic tile with a rough surface. It is usually white or light-colored.
2. Select the mineral: Choose the mineral you want to identify. It is best to select a fresh, unweathered surface of the mineral for accurate results.
3. Test the mineral's streak: Hold the streak plate firmly in one hand. Then, take the mineral specimen and firmly rub it across the rough surface of the streak plate. Apply enough pressure to produce a visible streak.
4. Observe the streak color: Examine the streak left behind on the streak plate. The color of the streak can differ from the mineral's actual color, so it is important to focus only on the color of the powdered streak.
5. Identify the mineral: Compare the color of the streak to a mineral identification chart or database. The streak color can provide valuable information about the mineral's identity. Some minerals have characteristic streak colors, while others may have a streak that is different from their appearance.
By using a streak plate, you can accurately determine the streak color of a mineral, which is an essential property for identifying minerals.