What Rocks are Made of

What Rocks are Made of - What Rocks are Made of 11/02/2008...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: What Rocks are Made of 11/02/2008 12:57:00 Rocks are made up of minerals How do minerals form? Three ways o Cooling From Melted rock (volcano) o Chemical Precipitation from a solution (the crystallized minerals left in a tea kettle after water has boiled away.or with salt stains on streets during the winter.) o Formation from solid state (diamondgraphite heated and squeezed to an extreme amount and then turns into a diamond). Some Key Minerals 4000 minerals 3 Key groups of minerals o Silicates (most abundant on earth.silicon and oxygen plus other elements) Made of two key atoms, silicon and oxygen. In a tetrahedron shape. SiO 2 + other elements Make up 90% of the rocks in the continental crust Light versus Dark silicates in color and density (light is less dense, and usually brighter) Ex. Quartz is a Light silicate (SiO 2 ) Ex. Feldspar is a light silicate Ex. Pyroxene Dark silicate (Dark green)Ex....
View Full Document

This note was uploaded on 04/01/2008 for the course GEOL 1010 taught by Professor Pranter,ma during the Spring '07 term at Colorado.

Page1 / 5

What Rocks are Made of - What Rocks are Made of 11/02/2008...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online