Moh’s Hardness Scale By Becky Clark Creator of the hardness scale Friedrich Mohs.

Slides:



Advertisements
Similar presentations
Minerals Science Starter #3. Mohs Scale 1. If your fingernail can easily scratch the mineral, what is the hardness of this mineral? 2. A student notices.
Advertisements

Oh Rockeo, Rockeo…what’s in a mineral? Identifying and Classifying Minerals.
MINERAL IDENTIFICATION PRACTICE ANSWERS. Mineral Name AppearanceHardnessLusterStreak Fracture/ Cleavage Iron Pyrite  Golden  Looks like metal  Shiny.
Section-2 Mineral Identification pg.68
So what is a mineral? What are the characteristics of all minerals?
Earth Materials SCRATCH TEST Lori Mitchell. We are the Rock Hounds Been looking for clues Time after time Hounded volcanoes Searching the old mines Found.
2.2 Minerals are basic building blocks of Earth.
Rock and Mineral Review. Which type of scientist studies rocks?
Essential Question:. Cleavage When a mineral is split into pieces and produces regular planes that reflect light. Fracture When a mineral breaks into.
How can we identify a mineral or a rock?
Properties of Rocks Lesson 1 What you will learn today What the words homogeneous and heterogeneous meanWhat the words homogeneous and heterogeneous.
Add to Table of Contents: Mineral Lab/questionsPg. 28 Properties of MineralsPg. 29.
BIG IDEA: Rocks and minerals have properties that can be: observed, tested, described, identified and recorded.
TOPIC 11 Minerals, Rocks and Mineral Resources
For our next set of tests I need your table to divide your tray of minerals up evenly. Scotty tests minerals 1-3 Lauren tests minerals 4-7 Tanya tests.
Minerals.
Rocks & Minerals NOTES Pages ©Mark Place,
Mineral Identification. What you’ll need to remember Describe physical properties used to identify minerals. Identify minerals using physical properties.
Review: Minerals T/F Rocks are found inside minerals
EQ: How are basic properties used to determine the type of mineral being investigated? A: Give students minerals and have them determine 3 characteristics.
Mineral I.D. Lab Earth Science 11 Corpuz. Purpose To identify a set of unknown minerals using their physical properties. To observe, describe and compare.
Minerals, Rocks, and Mineral Resources
 1. _______name of lab safety symbol that has a picure of a plant (lab safety)  2. ______the process scientists use to solve problems and answer questions.
MOH’S HARDNESS SCALE Rules for testing and identifying the hardness of minerals.
There are about 3,000 known minerals, only about 30 are common. The most common are quartz,feldspar,mica, and calcite.
Choose a category. You will be given the answer. You must give the correct question. Click to begin.
Minerals.
Minerals The world beneath us.
Mineral madness. Activate Prior Knowledge Talk at your tables about what you ALREADY know about this topic. Talk at your tables about what you ALREADY.
Minerals.
Mineral Identification Aim: How do we identify minerals? Chapter 3: section 2.
Rocks & Minerals. Minerals What is a Mineral? Naturally Occurring Naturally Occurring Solid Solid Inorganic Inorganic Definite Chemical Composition Definite.
Mohs Scale of Hardness.
Moh’s Hardness Scale By Becky Clark. Some minerals are softer than others. How hard a mineral is can help identify it. We measure the hardness of minerals.
5:06 AM October 25, 2011Sanders Unit 2: Rocks and Minerals 2-3 Identifying Minerals.
Goal: I can use Mohls Scale to find the hardness of a mineral.
To be able to identify these and other minerals, we need to look at the properties used to separate and distinguish these minerals.
Ways to Identify Minerals By: Danielle Ruff Cartersville Elementary School 3rd Grade.
Intro Objective 11/16/11 Identify minerals. What do you think are some ways to identify a mineral by?
Intro Objective 11/16/11 Identify minerals. Check and Hand-in Missing Assignments Write Q&A: What do you think are some ways to identify a mineral by?
Minerals. There are about 3,000 known minerals, only about 30 are common. The most common are quartz, feldspar, mica, and calcite.
11/16/2015 Starter: 11/16/ Minerals Practice: Notes : minerals Application: Minerals WS Connection: Name some things that you have that are.
Physical Properties Of Minerals
Aim: How can we describe a mineral?
MINERALS! 2015 Ms. Broy’s Class. ROCKS ARE MADE UP OF ONE OR MORE MINERALS!
Hardness Definition What can be used to test hardness of a mineral? Name of Scale to Measure Hardness of Minerals and Minerals in order from softest to.
Chapter 9: Rocks and Minerals. What are Rocks? Divide earth’s substances into 2 categories: – Living (_______) vs Non-Living (_________) Rocks -
Easily scratched by a fingernail Feels “greasy” Softest mineral Barely can be scratched by a copper penny Scratched by Fluorite but not Talc Acid.
2.1 The rock cycle describes how rocks form and change over time.
HOW TO IDENTIFY MINERALS What makes minerals different from each other? All minerals have certain traits or properties that make them different from each.
Mineral Properties How do we know what stuff is?.
COLOR  The color of the mineral you observe with your eyes.  The streak color does not always match the minerals color due to impurities, water, and.
Vocablualry Experiments Physical Properties Rocks/Ores Miscellaneous
Rocks and Minerals Mohs.
Add to Table of Contents:
Mohs Scale.
Properties of Minerals Students should write notes in yellow
Minerals.
Mineral Review Chapter 13.
Minerals.
Chapter 7 what Are Minerals?
Properties of Minerals
Minerals Mr. Cloud Earth Science.
Minerals.
Identifying Minerals Properties: Color, Luster, Streak, Density, Hardness, Cleavage, Fracture, and Special Properties.
Mineral Identification
MINERAL 1 Acid Test: (-) Observe color, luster, streak as shown
Mineral Identification Vocabulary
Mineral Properties.
Minerals The world beneath us.
Presentation transcript:

Moh’s Hardness Scale By Becky Clark Creator of the hardness scale Friedrich Mohs

Some minerals are softer than others. How hard a mineral is can help identify it. We measure the hardness of minerals by scratching them. In 1822, Frederick Mohs published his scale for determining a minerals hardness. The Mohs Scale measures hardness. It ranges from 1 to 10, in which the softest material is talc with 1 and the hardest is diamond with 10. The harder the stone, the more resistant it is to scratching.

How to Perform the Test 1) Select a fresh, clean surface on the mineral to be tested. 2) Hold the mineral firmly and attempt to scratch it. 3) Look for a scratch or line.

"Tools" for Testing Hardness There are several simple "tools" people often have with them that can be useful in determining the hardness of an unknown mineral. Your fingernail has a hardness of 2.5. A penny has a hardness of 3.0 The steel paper clip has a hardness of about 5.5.

Mineral Scratched by Finger Nail? Scratched by Penny? Scratched by Paper Clip? Number of tools that Scratched?

The following table shows the hardness of these materials: 1 Piece of chalk 3.5 Penny 2 Plaster of Paris 4 Iron Nail 2.5 Fingernail 5.5 Window Glass 3 Gold 6.5 Steel File

SONG: MR. MOHS TOES