Scorpio

That the zodiac sign Scorpio is characteristically idiosyncratic and proud is admittedly true, but it only uses its sting when it feels really threatened.

As a particularly intelligent and profound person, he tends to want to analyse everything - he is interested what goes on behind the scenes. 

Main Stone: Turquoise 

Compensating stones: Fluorite, Obsidian, Aventurine, Aquamarine, Chrysoprase 

Birthstones by month: 

October:    Tourmaline, Opal 
November: Topaz, Citrine 

Birthstone by decade: 

1st decade 
(23. 10. -02. 11.) Malachite 

2nd decade 
(03. 11. -12. 11.) Turquoise 

3rd decade 
(12. 11. -21. 11.) Amazonite