Tourmaline is found in almost every color and is known by different names depending on the chemical structure. Tourmaline is in the silicate mineral group as a boron silicate in which boron is compounded with elements such as aluminum iron, magnesium, sodium, lithium, or potassium in a common crystal structure yielding crystals with similar physical characteristics but very different chemical compositions.

Tourmaline is a 7-7.5 on the mohs scale and is one of the birthstones for October. Tourmaline is a durable gemstone and suitable for rinds as well as bracelets and pendants.

Tourmaline becomes electrically charged when heated and when squeezed. It’s piezoelectric as well.

Types of Tourmaline:

Elbite: Pink/Green Bicolor or Green

Indicolite: Blue

Rubellite: Red or Pink

Schoral: Black

The Long List:

Adachiite	CaFe₃Al₆(Si₅AlO₁₈)(BO₃)₃(OH)₃OH
Bosiite	NaFe₃(Al₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Chromium-dravite	NaMg₃Cr₆Si₆O₁₈(BO₃)₃(OH)₃OH
Chromo-alumino-povondraite	NaCr₃(Al₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Darrellhenryite	NaLiAl₂Al₆Si₆O₁₈(BO₃)₃(OH)₃O
Dravite	NaMg₃Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Elbaite	Na₂(Li₃,Al₃)Al₁₂Si₁₂O₃₆(BO₃)₆(OH)₆(OH)₂
Feruvite	CaFe₃(MgAl₅)Si₆O₁₈(BO₃)₃(OH)₃OH
Fluor-buergerite	NaFe₃Al₆Si₆O₁₈(BO₃)₃O₃F
Fluor-dravite	NaMg₃Al₆Si₆O₁₈(BO₃)₃(OH)₃F
Fluor-elbaite	Na₂(Li₃,Al₃)Al₁₂Si₁₂O₃₆(BO₃)₆(OH)₆F₂
Fluor-liddicoatite	Ca(Li₂Al)Al₆Si₆O₁₈(BO₃)₃(OH)₃F
Fluor-schorl	NaFe₃Al₆Si₆O₁₈(BO₃)₃(OH)₃F
Fluor-tsilaisite	NaMn₃Al₆Si₆O₁₈(BO₃)₃(OH)₃F
Fluor-uvite	CaMg₃(Al₅Mg)Si₆O₁₈(BO₃)₃(OH)₃F
Foitite	[](Fe₂Al)Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Lucchesiite	Ca(Fe)₃Al₆Si₆O₁₈(BO₃)₃(OH)₃O
Luinaite-(OH)	(Na,[])(Fe,Mg)₃Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Magnesio-foitite	[](Mg₂Al)Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Maruyamaite	K(MgAl₂)(Al₅Mg)Si₆O₁₈(BO₃)₃(OH)₃O
Olenite	NaAl₃Al₆Si₆O₁₈(BO₃)₃O₃OH
Oxy-chromium-dravite	NaCr₃(Mg₂Cr₄)Si₆O₁₈(BO₃)₃(OH)₃O
Oxy-dravite	Na(Al₂Mg)(Al₅Mg)Si₆O₁₈(BO₃)₃(OH)₃O
Oxy-schorl	Na(Fe₂Al)Al₆Si₆O₁₈(BO₃)₃(OH)₃O
Oxy-vanadium-dravite	NaV₃(V₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Povondraite	NaFe₃(Fe₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Rossmanite	[](LiAl₂)Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Schorl	NaFe₃Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Tsilaisite	NaMn₃Al₆Si₆O₁₈(BO₃)₃(OH)₃OH
Uvite	CaMg₃(Al₅Mg)Si₆O₁₈(BO₃)₃(OH)₃OH
Vanadio-oxy-chromium-dravite	NaV₃(Cr₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O
Vanadio-oxy-dravite	NaV₃(Al₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O

Black Tourmaline Natural Schorl Crystal