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consequently, platinum is often found chemically uncombined as native platinum. because it occurs naturally in the alluvial sands of various rivers, it was first used by pre-columbian south american natives to produce artifacts. it was referenced in european writings as early as th century, but it was not
is used in catalytic converters , laboratory equipment, electrical contacts and electrodes , platinum resistance thermometers , dentistry equipment, and jewelry. being a heavy metal , it leads to health problems upon exposure to its salts ; but due to its corrosion resistance, metallic platinum has not...
https://en.wikipedia.org/wiki/Platinum