manganotantalite -
man ' s ring -
marble banded ~ bardiglio ~ bird s - eye ~ black and gold ~ bougard ~ , breccia ~ brocatel (le) ~ calico ~ campana ~ cannes ~ carl - silicate ~ carrara ~ cave ~ fire ~ green ~ landscape ~ lepanto ~ lumachelle ~ lyonnaice ~ madrepore ~ magnesian ~ onion ~ onix ~ , sedementary ~ serpentine ~ - shell ~
marble onyx
marbled
marcasite -
marcasite , ( ) - , ,
mariposite (-븭 )
mark ; , , ; bootleg - ( ); center - ( ); chipping - ; collar - ( ); fire - (); handling - , ; reed - (); star - ( ); stop - ()
marquise ;
mark of assay
marquise -
marquise cut
martite
mascareignite ,
mascot -
mash
massic
massistor
master - ~ die -
master ~ -
master alloy
mat
material abrasive ~ burden ~ charge ~ fluxing ~ grinding ~ strip ~
matinee 22 ( )
matorolite cr -, -
matt
matt - , , , , ()
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matte ; bessemer ~ ; concentrated ~ ; converter ~ ; first ~ ; lead - copper ~ ; raw ~
matted
matting (, , )
maucherite ( )
maw - sit - sit --
mayaite
mazal tov (Yiddish) - (, )
mazariny cut
mazel tov (Hebrew) (, )
mechanical - ( ) metal - quench - ( ) strain - ( ) wear - ( ) work - ( ) hard - face ( ) ( )
mechanical
mechanism transfer ~
medallion -