12345678910111213KeywordboronboraxFrequency#4003Strokes13ReadingspéngMnemonic石 (mineral) gives the meaning and 朋 the sound.Stroke orderComposed of石rock朋friendUsed in vocabulary硼péngboron (chemistry)硼酸péngsuānboric acid H3BO3硼砂péngshāborax三氟化硼sānfúhuàpéngboron trifluoride