▁ γ - phase ▁can ▁be ▁described ▁as ▁a ▁rocks alt - type ▁arrangement ▁of ▁the ▁ icos ah ed ra ▁and ▁B 2 ▁atomic ▁pairs . ▁It ▁can ▁be ▁produced ▁by ▁compress ing ▁other ▁bor on ▁phases ▁to ▁ 1 2 – 2 0   G Pa ▁and ▁he ating ▁to ▁ 1 5 0 0 – 1 8 0 0   ° C ; ▁it ▁remains ▁stable ▁after ▁re le asing ▁the ▁temperature ▁and ▁pressure . ▁The ▁T ▁phase ▁is ▁produced ▁at ▁similar ▁press ures , ▁but ▁higher ▁temper atures ▁of ▁ 1 8 0 0 – 2 2 0 0   ° C . ▁As ▁to ▁the ▁α ▁and ▁ β ▁phases , ▁they ▁might ▁both ▁co exist ▁at ▁ambient ▁conditions ▁with ▁the ▁ β ▁phase ▁being ▁more ▁stable . ▁Com press ing ▁bor on ▁above ▁ 1 6 0   G Pa ▁produces ▁a ▁bor on ▁phase ▁with ▁an ▁as ▁yet ▁unknown ▁structure , ▁and ▁this ▁phase ▁is ▁a ▁super con duct or ▁at ▁temper atures ▁ 6 – 1 2 ▁K . ▁Bor os pher ene ▁( full er ene - like ▁B 4 0 ) ▁mole cules ) ▁and ▁bor oph ene ▁( pro posed ▁graph ene - like ▁structure ) ▁have ▁been ▁described ▁in ▁ 2 0 1 4 . ▁ ▁Chem istry ▁of ▁the ▁element ▁ ▁Element al ▁bor on ▁is ▁rare ▁and ▁poor ly ▁studied ▁because ▁the ▁pure ▁material ▁is ▁extremely ▁difficult ▁to ▁prepare . ▁Most ▁studies ▁of ▁" bor on " ▁involve ▁samples