Difference between revisions of "Mohs scale of mineral hardness"

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== Mohs scale of mineral hardness -- [[User:0livia|0livia]] 16:06, 13 August 2009 (UTC) ==
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To determine the hardness of a mineral or a hone, we are using the scale of mineral hardness by Friedrich Mohs. It is based on "what scratches what".
  
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To determine the hardness of a mineral or a hone,
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{| border="1" cellpadding="5" cellspacing="0"
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we're using the scale of mineral hardness by Friedrich Mohs
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|-
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Its based on "what scratches what".
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! style="background:#efefef;" | '''Substance or Mineral'''  
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! style="background:#efefef;" | '''Hardness'''
 +
|-
 +
| Diamond
 +
| 10
 +
|-
 +
| Corundum (Al<sub>2</sub>O<sub>3</sub>)
 +
| 9
 +
|-
 +
| Carborundum (SiC)
 +
| 9
 +
|-
 +
| Ruby
 +
| 9
 +
|-
 +
| Saphire
 +
| 9
 +
|-
 +
| Chrysoberyll
 +
| 8,5
 +
|-
 +
| Spinell
 +
| 8
 +
|-
 +
| Topaz
 +
| 8
 +
|-
 +
| Beryll
 +
| 7,5 - 8
 +
|-
 +
| Emerald
 +
| 7,5 - 8
 +
|-
 +
| Wolfram
 +
| 7,5
 +
|-
 +
| Garnet
 +
| 7- 7,5
 +
|-
 +
| Zircon
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| 6,5 - 7,5
 +
|-
 +
| Amethyst
 +
| 7
 +
|-
 +
| Quartz
 +
| 7
 +
|-
 +
| Citrin
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| 7
 +
|-
 +
| Tiger Eye
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| 7
 +
|-
 +
| Agate
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| 6,5 -7
 +
|-
 +
| Jadeit
 +
| 6,5 - 7
 +
|-
 +
| Jaspis
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| 6,5 - 7
 +
|-
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| Carneol
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| 6,5 - 7
 +
|-
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| Moss-Agate
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| 6,5 - 7
 +
|-
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| Onyx-Chalcedon
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| 6,5 - 7
 +
|-
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| Labradorit
 +
| 6 - 6,5
 +
|-
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| Moon stone
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| 6 - 6,5
 +
|-
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| Pyrite
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| 6 - 6,5
 +
|-
 +
| Titan
 +
| 6
 +
|-
 +
| Haematite
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| 5,5 - 6,5
 +
|-
 +
| Opal
 +
| 5,5 - 6,5
 +
|-
 +
| Beryllonit
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| 5,5 - 6
 +
|-
 +
| Glass
 +
| 5 - 7
 +
|-
 +
| Lapislazuli
 +
| 5 - 6
 +
|-
 +
| Obsidian
 +
| 5 - 5,5
 +
|-
 +
| Turquoise
 +
| 5 -6
 +
|-
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| Iron
 +
| 4,5
 +
|-
 +
| Platinum
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| 4,3
 +
|-
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| Rhodochrosit
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| 4
 +
|-
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| Nickel
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| 3,8
 +
|-
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| Malachite
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| 3,5 - 4
 +
|-
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| Coral
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| 3 - 4
 +
|-
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| Pearl
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| 3 - 4
 +
|-
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| Calcit
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| 3
 +
|-
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| Silver
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| 2,7
 +
|-
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| Jet
 +
| 2,5 - 3,5
 +
|-
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| Gold
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| 2,5 - 3
 +
|-
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| Copper
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| 2,5 - 3
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|-
 +
| Zinc
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| 2,5
 +
|-
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| Seafoam
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| 2 - 2,5
 +
|-
 +
| Amber
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| 2 - 2,5
 +
|-
 +
| Ivory
 +
| 2 - 3
 +
|-
 +
| Alabaster
 +
| 2
 +
|-
 +
| Tin
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| 1,8
 +
|-
 +
| Horn
 +
| 1,5 - 2,5
 +
|-
 +
| Lead
 +
| 1,2
 +
|}
  
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Diamond | 10
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More information about this scale can be found in [[wikipedia:Mohs scale of mineral hardness|Mohs scale of mineral hardness]].
  
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Corundum | 9
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[[Category:Hones]]
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Ruby | 9
 
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Saphire | 9
 
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Chrysoberyll | 8,5
 
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−
Spinell | 8
 
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−
Topaz | 8
 
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−
Beryll | 7,5 - 8
 
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Emerald | 7,5 - 8
 
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Wolfram | 7,5
 
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Garnet | 7- 7,5
 
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Zircon | 6,5 - 7,5
 
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Amethyst | 7
 
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Quartz | 7
 
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−
Citrin | 7
 
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Tiger Eye | 7
 
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−
Agate | 6,5 -7
 
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−
Jadeit | 6,5 - 7
 
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−
Jaspis | 6,5 - 7
 
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−
Carneol | 6,5 - 7
 
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−
Moss-Agate | 6,5 - 7
 
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−
Onyx-Chalcedon 6,5 - 7
 
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−
Labradorit | 6 - 6,5
 
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−
Moon stone | 6 - 6,5
 
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−
Pyrite | 6 - 6,5
 
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−
Titan | 6
 
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−
Haematite | 5,5 - 6,5
 
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−
Opal | 5,5 - 6,5
 
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−
Beryllonit | 5,5 - 6
 
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−
Glass | 5 - 7
 
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−
Lapislazuli | 5 - 6
 
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−
Obsidian | 5 - 5,5
 
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−
Turquoise | 5 -6
 
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−
Iron | 4,5
 
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Platinum | 4,3
 
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Rhodochrosit | 4
 
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−
Nickel | 3,8
 
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−
Malachite | 3,5 - 4
 
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−
Coral | 3 - 4
 
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−
Pearl | 3 - 4
 
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−
Calcit | 3
 
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−
Silver | 2,7
 
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−
Jet | 2,5 - 3,5
 
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−
Gold | 2,5 - 3
 
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Copper | 2,5 - 3
 
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Zinc | 2,5
 
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Seafoam | 2 - 2,5
 
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Amber | 2 - 2,5
 
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Ivory | 2 - 3
 
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Alabaster | 2
 
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Tin | 1,8
 
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−
Horn | 1,5 - 2,5
 
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−
Lead | 1,2
 
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More about it here: http://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness
 

Latest revision as of 17:15, 13 August 2009

To determine the hardness of a mineral or a hone, we are using the scale of mineral hardness by Friedrich Mohs. It is based on "what scratches what".

Substance or Mineral Hardness
Diamond 10
Corundum (Al2O3) 9
Carborundum (SiC) 9
Ruby 9
Saphire 9
Chrysoberyll 8,5
Spinell 8
Topaz 8
Beryll 7,5 - 8
Emerald 7,5 - 8
Wolfram 7,5
Garnet 7- 7,5
Zircon 6,5 - 7,5
Amethyst 7
Quartz 7
Citrin 7
Tiger Eye 7
Agate 6,5 -7
Jadeit 6,5 - 7
Jaspis 6,5 - 7
Carneol 6,5 - 7
Moss-Agate 6,5 - 7
Onyx-Chalcedon 6,5 - 7
Labradorit 6 - 6,5
Moon stone 6 - 6,5
Pyrite 6 - 6,5
Titan 6
Haematite 5,5 - 6,5
Opal 5,5 - 6,5
Beryllonit 5,5 - 6
Glass 5 - 7
Lapislazuli 5 - 6
Obsidian 5 - 5,5
Turquoise 5 -6
Iron 4,5
Platinum 4,3
Rhodochrosit 4
Nickel 3,8
Malachite 3,5 - 4
Coral 3 - 4
Pearl 3 - 4
Calcit 3
Silver 2,7
Jet 2,5 - 3,5
Gold 2,5 - 3
Copper 2,5 - 3
Zinc 2,5
Seafoam 2 - 2,5
Amber 2 - 2,5
Ivory 2 - 3
Alabaster 2
Tin 1,8
Horn 1,5 - 2,5
Lead 1,2

More information about this scale can be found in Mohs scale of mineral hardness.

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