https://padlet.com/008176565/kev53oyvsx05oa93 Learn about the six key properties that help us identify minerals and rocks! Perfect for middle school earth science. en-us 2025-03-10 15:05:13 UTC 2025-03-10 15:05:22 UTC hello@padlet.com 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050309 2025-03-10 15:05:13 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050309 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050371 - Your fingernail (hardness 2.5)
- A penny (hardness 3)
- A steel nail (hardness 5.5)
- A piece of glass (hardness 5.5)
If an object can scratch your mineral, your mineral is softer than that object!]]> 2025-03-10 15:05:16 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050371 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050378 2025-03-10 15:05:17 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050378 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050438 1. Get a piece of unglazed porcelain (like the back of a bathroom tile)
2. Scratch your mineral across it
3. Look at the color of the powder mark it leaves
For example: Pyrite (fool's gold) might look golden, but its streak is greenish-black!]]> 2025-03-10 15:05:18 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050438 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050448 - Metallic (like a penny)
- Pearly (like a pearl)
- Glassy (like a window)
- Dull (like chalk)]]> 2025-03-10 15:05:19 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050448 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050449 2025-03-10 15:05:19 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050449 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050456 2025-03-10 15:05:19 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050456 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050458 1. Look at your mineral in good lighting
2. Notice if it has one color or multiple colors
3. Write down the main color you see
4. Remember that some minerals can be different colors but still be the same mineral!]]> 2025-03-10 15:05:19 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050458 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050463 2025-03-10 15:05:20 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050463 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050516 2025-03-10 15:05:22 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050516 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050533 2025-03-10 15:05:22 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050533 008176565 https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050537 - Conchoidal (curved, like glass)
- Irregular (rough and uneven)
- Splintery (like wood)]]> 2025-03-10 15:05:22 UTC https://padlet.com/008176565/kev53oyvsx05oa93/wish/3359050537