Borax
Borax
Chemical Formula : Na2B4O5(OH)4·8H2O
Mohs Scale : 2 - 2.5
Crystal System : Monoclinic
Solubility : Solible in water
Melting/Boiling point : 743 C / 1575 C
The most extensive deposits are in Kirka,Turkey
Howlite
Howlite
Chemical Formula : Ca2B5SiO9(OH)5
Mohs Scale : 3.5
Crystal System : Monoclinic
Colemanite & Celestine
Colemanite & Celestine
Chemical Formula (Colemanite) : Ca2B6O11·5H2O
Mohs Scale : 4,5
Crystal System : Monoclinic
From Kütahya, Türkiye
Colemanite & Celestine
Colemanite & Celestine
From Kütahya, Türkiye