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@@ -918,6 +918,117 @@ Se (gray) & 221 & 685 & Hexagonal & Photocells, glass \\
 
 \section{Ores and alloys}
 
+\subsection{Ores}
+
+\begin{longtable}{p{3cm}p{6cm}p{3.5cm}}
+\toprule
+English Name & Properties & Formula \\
+\midrule
+\endfirsthead
+\toprule
+English Name & Properties & Formula \\
+\midrule
+\endhead
+Hematite & Red-brown iron ore, most important iron ore & \ce{Fe2O3} \\
+Magnetite & Black magnetic iron ore, high iron content & \ce{Fe3O4} \\
+Limonite & Yellow-brown hydrated iron oxide & \ce{2Fe2O3.3H2O} \\
+Siderite & Iron carbonate, light colored & \ce{FeCO3} \\
+Pyrite & Brass-yellow, fool's gold, used for sulfuric acid & \ce{FeS2} \\
+Chalcopyrite & Brass-yellow copper ore, most abundant copper ore & \ce{CuFeS2} \\
+Chalcocite & Dark gray copper sulfide & \ce{Cu2S} \\
+Malachite & Green basic copper carbonate & \ce{Cu2CO3(OH)2} \\
+Azurite & Blue basic copper carbonate & \ce{Cu3(CO3)2(OH)2} \\
+Cuprite & Red copper oxide & \ce{Cu2O} \\
+Bauxite & Reddish aluminum ore, clay-like & \ce{Al2O3.nH2O} \\
+Cryolite & White, used as flux in aluminum production & \ce{Na3AlF6} \\
+Corundum & Very hard aluminum oxide, includes ruby/sapphire & \ce{Al2O3} \\
+Galena & Lead-gray, cubic crystals, main lead ore & \ce{PbS} \\
+Cerussite & White lead carbonate & \ce{PbCO3} \\
+Anglesite & White lead sulfate & \ce{PbSO4} \\
+Sphalerite (Zinc blende) & Yellow-brown to black, main zinc ore & \ce{ZnS} \\
+Smithsonite & White zinc carbonate & \ce{ZnCO3} \\
+Zincite & Red-orange zinc oxide & \ce{ZnO} \\
+Cassiterite & Brown-black tin oxide, main tin ore & \ce{SnO2} \\
+Cinnabar & Bright red mercury sulfide, main mercury ore & \ce{HgS} \\
+Argentite & Dark gray silver sulfide & \ce{Ag2S} \\
+Calamine & Zinc silicate ore & \ce{Zn4Si2O7(OH)2.H2O} \\
+Chromite & Black chromium iron oxide, main chromium ore & \ce{FeCr2O4} \\
+Pyrolusite & Black manganese dioxide ore & \ce{MnO2} \\
+Rhodochrosite & Pink manganese carbonate & \ce{MnCO3} \\
+Rutile & Red-brown titanium dioxide & \ce{TiO2} \\
+Ilmenite & Black iron titanium oxide & \ce{FeTiO3} \\
+Barite & White barium sulfate, heavy & \ce{BaSO4} \\
+Witherite & White barium carbonate & \ce{BaCO3} \\
+Scheelite & White tungsten calcium ore & \ce{CaWO4} \\
+Wolframite & Black iron manganese tungsten ore & \ce{(Fe,Mn)WO4} \\
+Molybdenite & Gray, soft molybdenum sulfide & \ce{MoS2} \\
+Carnallite & White-red potassium magnesium salt & \ce{KCl.MgCl2.6H2O} \\
+Sylvite & White-red potassium chloride & \ce{KCl} \\
+Halite (Rock salt) & Transparent-white sodium chloride & \ce{NaCl} \\
+Fluorite (Fluorspar) & Colorful calcium fluoride & \ce{CaF2} \\
+Limestone & White-gray calcium carbonate sedimentary rock & \ce{CaCO3} \\
+Dolomite & White-pink calcium magnesium carbonate & \ce{CaMg(CO3)2} \\
+Gypsum & White calcium sulfate dihydrate & \ce{CaSO4.2H2O} \\
+Anhydrite & White calcium sulfate & \ce{CaSO4} \\
+Apatite & Green-blue calcium phosphate & \ce{Ca5(PO4)3(F,Cl,OH)} \\
+Phosphorite & Gray-brown calcium phosphate rock & \ce{Ca3(PO4)2} \\
+\bottomrule
+\end{longtable}
+
+\subsection{Alloys}
+
+\begin{longtable}{p{2.5cm}p{3.5cm}p{4.5cm}p{3cm}}
+\toprule
+English Name & Elements & Properties & Application \\
+\midrule
+\endfirsthead
+\toprule
+English Name & Elements & Properties & Application \\
+\midrule
+\endhead
+Steel & Fe, C (< 2\%) & Strong, hard, malleable & Construction, tools \\
+Stainless steel & Fe, Cr (10-20\%), Ni & Corrosion-resistant, strong & Cutlery, medical \\
+Cast iron & Fe, C (2-4\%) & Brittle, hard, good casting & Engine blocks, pipes \\
+Brass & Cu (55-95\%), Zn & Golden, corrosion-resistant & Musical instruments, fittings \\
+Bronze & Cu (88\%), Sn (12\%) & Hard, corrosion-resistant & Sculptures, bearings \\
+Aluminum bronze & Cu, Al (5-11\%) & Strong, corrosion-resistant & Marine hardware, coins \\
+Cupronickel & Cu (75\%), Ni (25\%) & Silver-colored, corrosion-resistant & Coins, marine uses \\
+German silver & Cu, Ni, Zn & Silver-white, no silver & Cutlery, jewelry base \\
+Phosphor bronze & Cu, Sn, P & Elastic, wear-resistant & Springs, electrical \\
+Gunmetal & Cu, Sn (10\%), Zn (2\%) & Corrosion-resistant, tough & Gears, bearings \\
+Duralumin & Al (94\%), Cu (4\%), Mg & Light, strong, age-hardenable & Aircraft, aerospace \\
+Magnalium & Al (70-95\%), Mg & Very light, strong & Aircraft parts \\
+Alnico & Al, Ni, Co, Fe & Strong magnetic & Permanent magnets \\
+Solder & Sn (60\%), Pb (40\%) & Low melting point & Electrical joints \\
+Lead-free solder & Sn, Cu, Ag & Low melting, no lead toxicity & Electronics \\
+Pewter & Sn (85-99\%), Sb, Cu & Soft, silvery, malleable & Decorative items \\
+Babbitt metal & Sn, Sb, Cu & Low friction, soft & Bearing surfaces \\
+Type metal & Pb, Sn, Sb & Expands on cooling & Printing type \\
+Wood's metal & Bi, Pb, Sn, Cd & Very low melting (70°C) & Fire sprinklers, fuses \\
+Rose's metal & Bi, Pb, Sn & Low melting (98°C) & Fusible alloys \\
+Nichrome & Ni (80\%), Cr (20\%) & High electrical resistance, heat-resistant & Heating elements \\
+Monel metal & Ni (67\%), Cu (30\%) & Corrosion-resistant, strong & Marine, chemical \\
+Invar & Fe (64\%), Ni (36\%) & Very low thermal expansion & Precision instruments \\
+Permalloy & Fe (20\%), Ni (80\%) & High magnetic permeability & Transformers, sensors \\
+Constantan & Cu (55\%), Ni (45\%) & Constant electrical resistance & Thermocouples \\
+Manganin & Cu (86\%), Mn (12\%), Ni & Stable resistance vs. temperature & Precision resistors \\
+Stellite & Co, Cr, W, C & Very hard, wear-resistant & Cutting tools \\
+Hastelloy & Ni, Mo, Cr, Fe & Excellent corrosion resistance & Chemical equipment \\
+Titanium alloy & Ti (90\%), Al (6\%), V (4\%) & High strength-to-weight ratio & Aerospace, implants \\
+Amalgam & Hg, Ag, Sn, Cu & Soft, hardens over time & Dental fillings \\
+Elektron & Mg (90\%), Al, Zn & Extremely light & Aircraft parts \\
+Beryllium copper & Cu (98\%), Be (2\%) & Non-sparking, elastic & Explosion-proof tools \\
+White gold & Au, Ni/Pd, Zn & White-silver appearance & Jewelry \\
+Rose gold & Au (75\%), Cu (22.5\%), Ag & Pink-red color & Jewelry \\
+Sterling silver & Ag (92.5\%), Cu (7.5\%) & Harder than pure silver & Jewelry, tableware \\
+Britannia silver & Ag (95.8\%), Cu & Softer, higher silver content & High-end silverware \\
+Nitinol & Ni (55\%), Ti (45\%) & Shape memory effect & Medical devices, actuators \\
+Zamak & Zn, Al, Mg, Cu & Good castability, moderate strength & Die castings \\
+Babbitt & Sn, Sb, Cu (or Pb base) & Low friction, good embeddability & Bearings \\
+Bell metal & Cu (78\%), Sn (22\%) & Resonant, hard & Bells, cymbals \\
+\bottomrule
+\end{longtable}
+
 \section{Reactions}
 
 \section{Hydrocarbons and their Halogen derivatives}