Phofo ea Tourmaline ke ntho e sitsitsoeng hantle e tsoang ho tourmaline, e leng diminerale e rarahaneng ea borosilicate e tsebahalang ka metsoako ea eona e fapaneng ea lik'hemik'hale le thepa ea eona e ikhethang ea 'mele. Foromo e akaretsang ea lik'hemik'hale ea tourmaline ke NaR3​Al6​(Si6​O18​)(BO3​)3​(OH,F)4​, moo R e ka bang li-ion tse fapaneng tsa tšepe tse kang tšepe, magnesium, lithium, kapa manganese, tse fang tourmaline mebala le litšobotsi tse fapaneng.

E thehiloe tlas'a maemo a itseng a jeoloji, tourmaline hangata e simoloha ho tsoa li-dikes tsa pegmatite le tikolohong ea metamorphic e phahameng le e nang le mocheso o phahameng. Li-pegmatites, tse leng majoe a igneous a nang le mahoashe, likristale tsa tourmaline li hola ho tsoa litharollong tsa hydrothermal tse nang le boron, aluminium, silicon le likarolo tse ling tsa bohlokoa nakong ea kristale ea magma ea morao-rao. Ho sa le joalo, mafikeng a metamorphic, tourmaline e thehoa ka lebaka la liketso tsa lik'hemik'hale har'a liminerale tse fapaneng tlas'a mocheso o matla le khatello, joalo ka nakong ea lits'ebetso tsa ho haha ​​​​lithaba.

Libaka tse kholo tse hlahisang tourmaline lefatšeng ka bophara li kenya letsoho haholo phepelong ea phofo ea tourmaline. Brazil e hlahella e le mohloli o ka sehloohong, e ithorisa ka mesaletsa e meholo ka lebaka la nalane ea eona e pharaletseng ea jeoloji e tletseng mesebetsi ea igneous le metamorphic. Sri Lanka le eona e bapala karolo ea bohlokoa, ka sebopeho sa eona se ikhethang sa jeoloji se thusang ho thehoa ha tourmaline. Madagascar, e tsebahalang ka mefuta-futa ea eona e ruileng ea liminerale, e fana ka bongata bo boholo ba tourmaline ea boleng bo holimo. Chaena, Xinjiang le Yunnan ke mehloli ea bohlokoa ea malapeng, moo maemo a rarahaneng a jeoloji le metsamao e sebetsang ea tectonic e hlahisang maemo a matle bakeng sa ho thehoa ha ore ea tourmaline.

Kamora ho epolloa, oli ea tourmaline e feta mehatong e mengata ea ts'ebetso hore e fetohe phofo. Qalong, e siloa likotoana tse nyane ho roba sebopeho sa lefika. Ka mor'a moo, ka ho sila le ho sila, oli e hloekisoa haholoanyane hore e be likaroloana tse nyane. Mekhoa ea ho hloekisa e etsoa ho tlosa litšila tse kang liminerale tse ling, letsopa le lintho tse phelang, ho netefatsa bohloeki le boleng ba phofo ea ho qetela ea tourmaline.

Pofo ea Tourmaline e na le mefuta e mengata ea ts'ebeliso. Indastering ea bophelo bo botle le boiketlo, e ananeloa haholo ka lebaka la thepa ea eona e ikhethang ea motlakase le mocheso. Ha e kopana le 'mele oa motho kapa tikoloho e itseng, phofo ea tourmaline e ka hlahisa motlakase o fokolang le mahlaseli a infrared a hole. Ho lumeloa hore thepa ena e khothalletsa phallo ea mali, e ntlafatsa metabolism, 'me e ka ntlafatsa boiketlo ka kakaretso. Lefapheng la litlolo, e eketsoa lihlahisoa tsa tlhokomelo ea letlalo ka lebaka la litlamorao tsa eona tse mongobo, tse khahlanong le botsofali le tse kokobetsang letlalo. Lefapheng la tikoloho, phofo ea tourmaline e ka sebelisoa ho hloekisa metsi le moea, kaha e ka monya lintho tse kotsi. Ho feta moo, indastering ea kaho le ea letsopa, e kenyelletsoa thepa ho ntlafatsa thepa ea eona ea 'mele, joalo ka matla le ho tšoarella. Ka kakaretso, ho tenyetseha ha phofo ea tourmaline ho e etsa thepa ea bohlokoa lits'ebetsong tse fapaneng tsa sejoale-joale.