Metals found in their native form:
* Gold (Au): Often found as nuggets or in veins.
* Silver (Ag): Can be found as nuggets, but more commonly in veins with other minerals.
* Copper (Cu): Sometimes found as native copper, but more often in ores.
* Platinum (Pt): Usually found in small amounts, often mixed with other metals.
* Mercury (Hg): Can be found as liquid mercury in deposits.
Metals found in compounds (ores):
* Iron (Fe): Found primarily as iron oxide (hematite, magnetite).
* Aluminum (Al): Found primarily as aluminum oxide (bauxite).
* Zinc (Zn): Found in various sulfides and carbonates.
* Lead (Pb): Found primarily as lead sulfide (galena).
* Tin (Sn): Found primarily as tin oxide (cassiterite).
* Nickel (Ni): Found in various sulfides and oxides.
* Manganese (Mn): Found primarily as manganese oxide (pyrolusite).
* Chromium (Cr): Found in various oxides and chromites.
* Titanium (Ti): Found primarily as titanium oxide (ilmenite, rutile).
* Magnesium (Mg): Found as magnesium carbonate (dolomite) and magnesium chloride (carnallite).
Important Notes:
* Metallicity: Not all naturally occurring elements are metals. For example, silicon is found in abundance, but is a metalloid.
* Rarity: Even metals found in their native form are often scarce. The vast majority of metals are found in compounds within the earth's crust.
* Extraction: Getting metals from their ores involves complex and energy-intensive processes like mining, refining, and smelting.
This list covers the most common metals, but there are many others found naturally, even in trace amounts. The study of metals is an ongoing area of scientific research and exploration.
