da chu

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ད་ཆུ
mercury, synthetic cinnabar [RY]

mercury, cinnabar [IW]

mercury [JV]

mercury, cinnabar [among mtshal rigs, by its power joins broken bones, dries chu ser, overcomes gnyan nad] [IW]

(med) Cinnabar (Yeshi 2018)
Synonyms : mtshal dkar (Shel gong)

da chus rus pa chag pa sbyor bar byed / ces pa [117] ldong ros dang dngul chu sogs la bzos kyang zer la / dbyibs cog la ma 'dra ba la kha dog de las dkar ba bzos pa'i rtags su snod du blugs nyams yod pa de yin / 'di la mtshal dkar yang zer / da chu zhes rgya nag gi skad yin / rgya'i grong khyer tshad pa kshang zer ba dang / ci ho khams zer bar bzo ba'i phyogs tsam mthong / dngul chu dgos par 'dug / zhib tu mi ston par snang / cog la mo la cu'u gshag zer / de nyo bar dris tshe 'di sa thag ring po nas brag gi gting nas len dgos pas dkon la gong yang che / tshon byed na kha dog nag pas mi dga' / da chu nyo bde mdog legs pas dga' zer / sngar bod kyi mi rgya yul du 'khyar nas sa bzung ba g.yung drung rgyas zer ba zhig gis lo tsa' byas nas / 'o mi shan gyi sman pa la dris pas / cu'u gshag la dug med pas dug la phan / khyad par reg dug bse mog la phan / da chu la dug yod pas dug la gnod / reg dug la byugs na gnod zer / rgyud 'grel dag pa rnams la'ang 'di ltar 'grel pa yin pas yid ches pa'i khungs gtam mo // (Shel gong shel phreng, pdf p 116.6)
da chu ni / rgyud du / li khrid rul gcod da chus rus pa sbyor / zhes pa bai sngon du yig ma dag par 'dod nas rdo chur bzhed pa'ang / zur lugs dang dge bshes bstan 'dzin phun tshogs kyis da chu dgongs so / de la mtshal dkar / mtshal tshwa zer / da chu la cog la mar ngos 'dzin ba rnams nor ba ste / 'grel ba thams cad du bzo mar gsungs shing / bdud rtsi zil dkar las / ze tshwa bzes nas grang [?] tsha la dag / dngul chu (chus bshigs pa'am) mtshal dkar btab btsos (bdud rtsi) da chu yin / mtshal gong rin chen da chu'o // de'u dmar bas / ze tsha srang gsum tsha la srang gang rgya mtshal ba dngul chu zho gang zhun chags byas par gsungs / zhes pa dang / shel 'phreng las / dbyibs cog la ma 'dra ba la kha dog de las dkar ba zos ba'i rtags su snod du blugs nyams yod pa de yin / rgya nag gi shin shi zhes sa pa rdo dug nas bzo ba hung phan zhes pa ma yin no // (mDzes mtshar mig rgyan, print p 070)

Yeshe (2018) identifies da chu with cinnabar and it's synonym mtshal dkar with litharge (see li khri for minium and litharge).
cog la ma, da chu and mtshal are distinct, but subsequent entries in the Shel gong and refer to forms of Cinnabar (mtshal). Cinnabar (Mercury sulfide HgS) is the principal ore of mercury, dngul chu, and may be confused with the red lead oxides litharge or minium (see li khri). Vermillion is artificially produced cinnabar, the Eye Ornament has da chu in the 'precessed mineral' section. Several mining sites in Central Tibet. (mindat.org)
Johannes Schmidt (talk) 05:22, 25 February 2024 (EST)