THE BRAZILIAN CONNECTION - Gemstones & Gemstone Jewelry
This system was developed by German gem
expert, Friedrich Mohs in 1812 and is still in use today. The scale
involves a numerical value of 1 through 10, with 1 being the most
easily scratched, and 10 being the most scratch-resistant.
MOHS SCALE OF GEMSTONE HARDNESS
| Gem/Mineral |
Hardness |
Birthstone |
| *Amber |
2.5 |
|
| *Ivory |
2.5 |
|
| *Jet |
2.5 |
|
| *Mabe
Shell |
2.5 |
|
| Serpentine |
2.5-5.0 |
|
| *Tortoise
Shell |
2.5 |
|
| Calcite |
3.0 |
|
| *Pearl |
3.0 |
June |
| Azurite |
3.5 |
|
| *Coral |
3.5 |
|
| Fluorite |
4.0 |
|
| Malachite |
4.0 |
|
| Rhodocrosite |
4.0 |
|
| Apatite |
5.0 |
|
| Dioptase |
5.0 |
|
| Moldavite |
5.0 |
|
| Obsidian |
5.0 |
|
| Titanite |
5.0 |
|
| Diopside |
5.5 |
|
| Lapis |
5.5 |
December |
| Milarite |
5.5 |
|
| Sodalite |
5.5 |
|
| Black Opal |
6.0 |
October |
| Labradorite |
6.0 |
|
| Moonstone |
6.0 |
June |
| Opal |
6.0 |
October |
| Orthoclase |
6.0 |
|
| Rhodonite |
6.0 |
|
| Scapolite |
6.0 |
|
| Spectrolite |
6.0 |
|
| Sunstone |
6.0 |
|
| Turquoise |
6.0 |
December |
| Andradite |
6.5 |
|
| Demantoid |
6.5 |
January |
| Fire
opal |
6.5 |
October |
| Hematite |
6.5 |
|
| Nephrite Jade |
6.5 |
|
| Peridot |
6.5 |
August |
| Tanzanite |
6.5 |
December |
| Kyanite |
7.0-5.0 |
|
| Agate |
7.0 |
|
| Amethyst |
7.0 |
February |
| Ametrine |
7.0 |
|
| Aventurine |
7.0 |
|
| Bloodstone |
7.0 |
March |
| Blue Chalcedony |
7.0 |
|
| Carnelian |
7.0 |
|
| Cat's Eye Quartz |
7.0 |
|
| Chrysoprase |
7.0 |
|
|
| Gem/Mineral |
Hardness |
Birthstone |
| Citrine |
7.0 |
November |
| Goldenite |
7.0 |
|
| Grossular
Garnet |
7.0 |
January |
| Hiddenite |
7.0 |
|
| Iolite |
7.0 |
|
| Jadeite
Jade |
7.0 |
|
| Jasper |
7.0 |
|
| Kunzite |
7.0 |
|
| Mandarin
Garnet |
7.0 |
January |
| Onyx |
7.0 |
|
| Petrified
Wood |
7.0 |
|
| Quartz
Crystal |
7.0 |
April |
| Rhodolite |
7.0 |
January |
| Rose
Quartz |
7.0 |
|
| Sard |
7.0 |
|
| Sardonyx |
7.0 |
August |
| Smokey
Quartz |
7.0 |
|
| Spessartine |
7.0 |
|
| Tiger's
Eye Quartz |
7.0 |
|
| Tsavorite |
7.0 |
January |
| Hessonite |
7.25 |
January |
| Pyrope |
7.25 |
January |
| Almandine
Garnet |
7.5 |
January |
| Andalusite |
7.5 |
|
| Aquamarine |
7.5 |
March |
| Danburite |
7.5 |
|
| Emerald |
7.5 |
May |
| Goshenite |
7.5 |
|
| Heliodor |
7.5 |
|
| Hyacinth |
7.5 |
|
| Indicolite |
7.5 |
|
| Morganite |
7.5 |
|
| Red
Beryl |
7.5 |
|
| Rubellite |
7.5 |
|
| Sillimanite |
7.5 |
|
| Tourmaline |
7.5 |
October |
| Uvarovite
Garnet |
7.5 |
January |
| Zircon |
7.5 |
December |
| Blue
Topaz |
8.0 |
December |
| Spinel |
8.0 |
|
| Topaz |
8.0 |
November |
| Alexandrite |
8.5 |
June |
| Cat's
Eye Chrysoberyl |
8.5 |
|
| Blue
Sapphire |
9.0 |
September |
| Padparadscha |
9.0 |
September |
| Ruby |
9.0 |
July |
| Sapphire |
9.0 |
September |
| Diamond |
10.0 |
April |
|
Note: Any gemstone listed
above can be scratched by any gemstone with the same hardness,or any
harder gemstone farther down the list.
*not technically a gem or mineral, but
organic matter
For questions or more information, e-mail us at dleonsnyder@gmail.com
or call us: (April 1st - September 26th) 570-925-4419
(October 1st - March 27th) 828-837-6860
cell phone - 570-912-8407