Jade Brown, nke a na-akpọkarị aha ya dị ka ájá diamond, bụ nwoke agba aja aja nke e kere alumina, ihe carbon, na ihe atọ nke na-agbaze ma belata na ọkụ ọkụ eletrik, ya mere ọ bụ aha a.Isi chemical Efrata nke aja aja jed bụ Al2O3, na ọdịnaya bụ 95.00% -97.00%, na e nwere ọzọ obere ego nke Fe, Si, Ti, wdg The aja aja jed bụ kasị isi abrasive, n'ihi na ya egweri arụmọrụ bụ. dị mma, nnukwu ngwa ngwa, dị ọnụ ala, a na-ejikarị ya eme ihe.
Jade aja aja bụ isi akụrụngwa nwere aluminom aluminous, coke (anthracite), ma nwee nnukwu okpomọkụ na-agbaze n'ime ọkụ arc eletrik.Ọ na-adabara maka egweri elu metal, dị ka dị iche iche n'ozuzu ígwè., Nwere ike adịgboroja nkedo ígwè, hard bronze, wdg, nwekwara ike rụpụta elu refractories.Grungy agba aja aja nwere njirimara nke ịdị ọcha dị elu, ezigbo crystallization, mmiri siri ike, ọnụọgụ mgbasawanye waya dị ala, yana nguzogide corrosion.Na ọtụtụ ndị na-emepụta ọkụ na-eguzogide ọkụ, ngwaahịa ahụ nwere njirimara nke mgbawa, enweghị ntụ ntụ, na enweghị mgbawa na ngwa.Karịsịa, ọ dị elu karịa ọnụ ahịa nke jasteas na-acha aja aja nke omenala, nke na-eme ka ọ bụrụ nchịkọta kachasị mma na ihe na-emepụta ihe na-eme ka aja aja aja.