在山东新泰市新太古代泰山岩群变质岩系中,首次发现宝石级红刚玉,又称红宝石,商业名称暂定为“泰山红宝石”。红宝石产于鲁西地区新太古代二长花岗岩的壳源岩石包体之中,包体岩性以黑云更长变粒岩、黑云片岩、角闪石岩、斜长角闪岩、浅绿色含铬二云片岩为主,是新太古代古老地壳的深融残留;红刚玉与浅绿色含铬二云片岩关系密切,推测是新太古代变质岩中原岩残留斑晶矿物。 In the Neoarchean Taishan Group metamorphic rocks in Xintai City, Shandong Province, gem-grade corundum was also found for the first time, also known as ruby, whose commercial name is tentatively set as “Taishan Ruby ”. The rubies are found in the crust-derived rock inclusions of the Neoarchean monzogranite in the Luxi area. The lithology of the enclaves is characterized by dark-grained capitals, biotite schist, amphibolite, amphibolite, shallow Green Cr-rich two-grade dolomite is the deep-melting remnant of the Neo-Archean ancient crust. The red corundum is closely related to the light-green chromium-bearing ductile rock and is presumed to be a residual phenocryst in the Neoprean metamorphic rocks.