What minerals can Feldspar scratch? - Answers

Nov 28, 2010· Minerals that will scratch apatite must be more than a 5 on the Moh's hardness scale. So feldspar, quartz, topaz, corundum, and diamond will scratch apatite.

Name Mohs Scale WS Date Period Group

Feldspar 6 Quartz 7 Topaz 8 Corundum 9 Diamond 10 1. Mineral A scratches minerals E and I, but can be scratched by mineral J. 2. Mineral C can be scratched by every other mineral. 3. Mineral E can scratch mineral I. 4. Mineral F can scratch only mineral C. 5.

Mohs Hardness Scale - The Rock Shed

Can be scratched with fingernail : 3: Calcite: Can be scratched with Copper : 4: Fluorite/Malachite: Can be scratched with knife : 5: Apatite: Can be scratched with knife: 6: Feldspar/Amazonite: Knife barely scratches it: 7: Quartz/Agate: Scratches glass easily: 8: Topaz: Scratches Glass and common minerals: 9: Ruby/Saphire: Scratches Topaz and ...

Minerals - Mohs Scale of Hardness Quiz - Quizizz

If a mineral is scratched by talc, what must its hardness rating be? Minerals - Mohs Scale of Hardness DRAFT. ... Feldspar. Apatite, and Talc. Talc, Gypsum, Topaz. Diamond, Calcite, Fluorite. Tags: Question 7 . ... If a mineral is scratched by Topaz(8) but not by Quartz(7), and it can scratch Quartz, what is its hardness rating? ...

Gemstone Hardness and Wearability - International Gem Society

Minerals of the same hardness won' t scratch each other. Thus, a ruby can't scratch a sapphire and vice versa. A diamond is much harder than corundum, even though they're only one division apart on the scale. The Mohs scale starts approximately linear, but the curve climbs sharply at the high end. Corundum (9) is twice as hard as topaz (8 ...

Quick Answer: What Mineral Can Scratch Glass ...

Hardness mineral Mohs hardness observations on the minerals quartz 7 scratches glass easily topaz 8 scratches glass very easily corundum 9 cuts glass diamond 10 used as a glass cutter. What can scratch glass? Things That Scratch Glass Hardened steel, such as a file, can scratch glass.

Which minerals can scratch topaz? - Answers

May 14, 2012· No, gypsum cannot scratch topaz. Minerals with a higher number on the Moh's Hardness Scale can scratch minerals that are lower-numbered, but …

Activity 20: Testing the Hardness of Common Minerals Maine ...

Scratches Is Scratched by Unknown #2 Fingernail Penny Knife Glass File Scratches Is Scratched by PART III: Using the table below, identify the two unknown minerals. Mineral Hardness Magnetite 6 Topaz 8 Spodumene 6.5 Galena 2.5 Dolomite 4 Unknown #1: _____

Mohs Hardness Test

"That which scratches is harder than that which has been scratched." "Objects of equal hardness can be scratched with difficulty." How to perform the scratch test: You should find a sharp corner of a mineral and scratch the smooth surface of the test object (fingernail, penny, glass plate, knife, steel file, etc.) This is the preferred method ...

What Minerals Can Scratch Glass - SeniorCare2Share

What minerals can cut glass? Mohs Scale of Hardness Hardness Mineral Observations of mineral 7 Quartz Can scratch glass easily. This is where most granites are rated in terms of hardness. 8 Topaz Can scratch glass very easily. 9 Corundum Can cut glass. 10 Diamond Can scratch virtually anything, is commonly used to cut glass and stone.

Roser Canet_3r ESO_materials on the Earth crust.pdf - UNIT ...

Feldspar 7 Very Hard Can be scratched with a concrete nail Quartz 8 Very Hard Topaz 9 Extremely Hard Used in industrial tools for cutting, grinding & sanding. Corundum 10 The Hardest Diamond is used to cut all minerals including diamonds.

What mineral Cannot be scratched by a steel nail ...

{Section title='answer? !!! Answer and Explanation: Objects that can scratch feldspar but not quartz would be those rated as a 7 on the Mohs hardness scale. This is because feldspar is a 6 on the scale, and quartz is a 7. Can Topaz be scratched by a fingernail? The numbers on the scale classify minerals only by their hardness.

Earth's Minerals (Book): - Hardness

Diamond is the hardest mineral; no other mineral can scratch a diamond. Quartz is a 7. It can be scratched by topaz, corundum, and diamond. Quartz will scratch minerals that have a lower number on the scale. Fluorite is one. Suppose you had a piece of pure gold. You find that calcite scratches the gold. Gypsum does not.

What mineral can scratch glass and steel? – AnswersToAll

Feb 05, 2021· A fingernail can scratch only a few minerals. Which mineral will scratch feldspar but not topaz? Diamond is the hardest mineral; no other mineral can scratch a diamond. Quartz is a 7. It can be scratched by topaz, corundum, and diamond. Quartz will scratch minerals that have a lower number on the scale….Mohs Hardness Scale.

Mineral identification Flashcards | Quizlet

If a mineral can't be scratched by you finger nail, what is it harder than? 2.5. A penny is the 2nd step in the hardness test. If a mineral scratches the penny what is it harder than? 3.5. A glass plate is the 3rd step in the hardness test. If a mineral can scratch a plate, what is is harder than? ... Topaz. What is #7 on the hardness scale ...

Mohs Hardness Scale (Tests + Images Edition) Flashcards ...

Mohs hardness scale can be used to determine the hardness of minerals by performing scratch tests. This study set includes the different tests used to determine these minerals and pictures of these minerals. ... Feldspar. 6. It can't be scratched by a steel knife but can scratch window glass. ... Topaz. 8. It can scratch quartz but not corundum ...

Minerals Test | Earth Sciences Quiz - Quizizz

Question 15. SURVEY. 30 seconds. Q. Hardness is a physical property of minerals. Sheena is testing the hardness of an unknown mineral against some of the minerals at the table. She finds that the unknown mineral scratches apatite but is scratched by topaz.

If an unknown mineral scratches gypsum and is scratched by ...

Mar 30, 2021· Over 2.0 and maxed at 6.5 Gypsum is one of the 10 minerals used by the Mohs scale, and by that scale, it has a hardness of 2.0. Steel (depending upon its quality) has a hardness between 5.0 and 6.5. If the poorest quality steel scratches the miner...

Mohs Hardness Scale - Earth Science The Mohs Hardness Test ...

Earth Science. The Mohs Hardness Test. During the early 1800s, a German mineralogist named Friedrich Mohs devised a scale that tested mineral hardness, which means the resistance of a mineral to being scratched. This scale, which ran from 1 to 10, was named after Mohs, and …

Mohs scale of mineral hardness - Simple English Wikipedia ...

Mohs' scale of mineral hardness is named after Friedrich Mohs, a mineralogist.Mohs scale is ordered by hardness, determined by which minerals can scratch other minerals.. Rocks are made up of one or more minerals. According to the scale, Talc is the softest: it can be scratched by all other materials. Gypsum is harder: it can scratch talc but not calcite, which is even harder.

Mohs Hardness Scale - Rockroost

(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.) 6: Orthoclase: Orthoclase is a feldspar, and in German, "feld" means "field". (Will not scratch glass but will scratch steel blades, copper coins & fingernails.) 7: Quartz (Will scratch glass, steel blades, copper coins & fingernails.) 8: Topaz

What is the hardness of a penny? - AnswersToAll

Mar 16, 2021· If a mineral cannot be scratched by a knife blade but can be scratched by quartz then its hardness is between 5 and 7 (stated as 5-7) on Mohs scale. A relative hardness value of 6.5 means that the mineral could scratch orthoclase (feldspar) but not quartz.

Geology - rocks and minerals

Rather, it is a method of gauging the relative hardness of a mineral. If a mineral cannot be scratched by a knife blade but can be scratched by quartz then its hardness is between 5 and 7 (stated as 5-7) on Mohs scale. A relative hardness value of 6.5 means that …

Quick Answer: Can Feldspar Scratch Glass - SeniorCare2Share

What stones can scratch glass? The Mohs Scale of Hardness 10 Diamond 8 Topaz 7 Quartz [Example: It scratches window glass] 6 Feldspar [Example: A steel file will scratch it] 5 Apatite. What can be scratched by glass? Things That Scratch Glass Hardened steel, such as a file, can scratch glass.

The Mohs Hardness Scale And Chart For Select Gems

The Mohs hardness scale measures a mineral's resistance to scratching. Find the traditional scale here and a chart of select gems ordered by hardness.

MINERALS - City University of New York

Hardness is a measure of a mineral's resistant to abrasion. This property is easily determined and is used widely for field identification of minerals. More than a century ago. Friedrich Mohs (1773-1839), a German mineralogist, assigned arbitrary relative numbers to ten common minerals in order of their hardness. Hardness.

Mohs Scale of Common Gems - Ganoksin Jewelry Making …

Feldspar; Quartz; Topaz; Corundum (ruby and sapphire) Diamond; Each mineral can be scratched by itself or any above it. None can be scratched by any below it. For example, topaz can scratch quartz, but it can't scratch corundum. Talc can be scratched by everything, and nothing but diamond will make a mark on diamond.

MINERALS - Google Slides

Lets take a look at the ten minerals used and some of the simple tests. Talc (left) is the softest and has a hardness of 1. A soft pencil lead will scratch talc. Gypsum is a bit harder and has a hardness of 2. A fingernail scratches gypsum. Calcite (left) has a hardness of 3 and a copper penny just scratches it.

Solved Questions: 1. A mineral cannot be scratched by a ...

a. Another mineral you find can scratch orthoclase feldspar, but it cannot scratch quartz. Your porcelain streak plate has a hardness of 6.5. What would you do next to determine the hardness of; Question: Questions: 1. A mineral cannot be scratched by …

Mohs Hardness Scale: Testing the Resistance to Being Scratched

What is Mohs Hardness Scale? One of the most important tests for identifying mineral specimens is the Mohs Hardness Test. This test compares the resistance of a mineral to being scratched by ten reference minerals known as the Mohs Hardness Scale (see table at left). The test is useful because most specimens of a given mineral are very close to the same hardness.

Minerals - JeopardyLabs - Online Jeopardy Template

Talc, Gypsum, Calcite, Fluorite, Apatite, Feldspar, Quartz, Topaz, Corundum, Diamond. 500. What is the 6th mineral on the MOHs hardness scale. Feldspar. 500. What are the 4th and 5th hardest. Fluorite, Apatite. 500. If diamond is the hardest mineral does that mean it can scratch the other minerals on the MOHs hardness scale.

Mohs Hardness Scale Practice Flashcards | Quizlet

This mineral can scratch a nail, but it CAN'T scratch glass. ... Hardness = 5. Orthoclase (Feldspar) A steel file CAN scratch this mineral...but this mineral can scratch GLASS! Hardness = 6. Quartz. This mineral can scratch a steel file! Topaz is too hard for it to scratch though. Hardness = 7. Topaz. Has a hardness of 8. Corundum.