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Birthstones and MOH Hardness Scale
 

 

MONTH STONES
January       Garnet
February       Amethyst
March       Aquamarine
April Diamond
May Emerald
June Alexandrite, Pearl
July Ruby
August Peridot
September Blue Sapphire
October Opal, Tourmaline
November Golden Topaz, Citrine
December Blue Topaz

 

 

 

 

 

 

 

 

 

 

 

MOH'S HARDNESS SCALE

GEMSTONE
MOHS HARDNESS SCALE
Opal

Amethyst
Citrine
Garnet
Peridot

Aquamarine
Emerald
Topaz

Ruby
Sapphire

Diamond
6

7
7
7
7

8
8
8

9
9

10

 

 

 

 

 

 

 

 

 

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