Difference between revisions of "Mohs scale of mineral hardness"

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

Revision as of 17:07, 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 RTENOTITLE.