Color Test
Some metals can be easily identified by color
Copper
Reddish Brown
Manganese Steel
Bluish in service; copper-color in storage
Zinc, Magnesium, Aluminum, Tin & Lead
Whitish
Brass
Yellow if high zinc content, otherwise reddish
White Cast Iron
White and silvery
Grey Cast Iron
In a fractured state, grey
Will deposit grey graphite streak on contact
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