Feldspar

High school (ages 12+)
Environment & Earth

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/feldspar

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is feldspar and why does it sparkle?Feldspar is a common mineral that makes up about 60% of Earth's crust. It can look shiny or sparkle in rocks and even in kitchen countertops.
2. How does feldspar form inside the Earth?Feldspar crystallizes from cooling magma, often being one of the first minerals to form. The type of feldspar depends on the magma’s composition and the temperature and pressure during cooling.

Tectosilicate: A silicate mineral where the basic tetrahedral units form a three-dimensional framework structure.
Solid Solution Series: A mineral where two or more chemical elements can substitute for each other in the crystal structure over a range of compositions.
Vitrification: The process of transforming a substance into a glass or a glassy, non-crystalline solid, typically by melting and rapid cooling.