It is suggested that in the above region boron atoms may only existin reedmergnerite [BSi_4O_(10)]~(1-) units and pyroborate [B_2O_5]~(4-) units.

• 认为硼原子可能仅存在于[BSi_4O_(10)]~-单位及焦硼酸盐[B_2O_5]~(4-)单位中。