Stephanie G.

Fast FactDid you know that in about 3 miles in the earths crust you can find rocks.

Platinum, silver and gold are all rare and valuable.

Quartz are common.

A kind of quartz.

Olivine is

rare.

Granite is a mineral and is useful to make countertops.In some granite you can see the minerals from eye.They are also useful to collect.

Mica = blackQuartz

= Gray

Feldspars=pink and white

Igneous rocks are formed when

molten magma from deep within

the earths crust and upper mantle

cools.

The two types are

intrusive and extrusive.

Granite is an intrusive rock, witch means

that they solidify within the Earth’s crust

and only appear at the surface after the

rocks above them have been eroded

away.

This is a mineral called

pitchstone. It is a

extrusive rock witch

means it is lave fro

m an

volcano and then cools

on the surface.

The pitchstone

Rocks that are formed by volcanic activity are in to groups. Plyroclastic rocks and acid and solid rocks.

Means fire-broken an apt name for rocks that consist of rock and lava pieces that were shattered apart by exploding gases.

A plyroclastic rock.

A fact about rocks jumbled pieces are that a force of exspoltion may cause rocks to fragments.!

Runny lavas are basically fast- flowing and spread out quickly to spread vast areas.

Multi- colored basalt sparkling points in this basalt include green olivine and black pyroxene crystals.

Sedimentray rocks are when rocks and minerals are eroded and then beated down to smaller rocks and minerals. The sediment may eventually be carried to a new site often at a sea or river. Usually, the particles will form to new rocks, known as sediments.

The Grand Canyon was formed my erosion using red sandstone and limestone.

Believe it or not chalk is made out of limestone.

Marble is a metamorphosed limestone made of a variety of other rocks. Marble has been used for sculpting practically Greek gods.

Believe it or not the Taj Mahal is made out of assorted marble.

Art work in Taj Mahal

Every year about 19,000 meteorites each weighing about 4 oz. fall on the earth and mostly fall in seas or dessert. They are meteorites that survive their fall from space.

The Murchison meteorite feel in Astralia in 1969. This is a sediment of it.

1. The Nakhla Stone2. The Barwell meteorite3. The Murchison meteorite