Limestone with a pure white color normally formed in clear, warm water. It could also have formed in a river estuary as well as river beds.
Not all limestone are white, some are green and some are a bit brownish.
Did you know crayons are made of limestone?
White is considered a pure colour because it is plain and is following the rules
White Gold is a alloy of gold and other metals (usually silver), it is not pure gold. Pure gold is golden in colour.
Pure zinc sulphide is white in colour and is used as white pigment. But it is usually black in colour due to the presence of impurities.
Pure substance
Calcium carbonate is more coomonly known as limestone,when it is pure it is white howevr in its natural state it is grey.. calcite in caves is also calcium carbonate and varies in colour, e.g. oranges browns and yellows
There are different types of limestone rock in the UK which differ in colour. Carboniferous limestone is greyish and hard and made from the remains of corals. Jurassic limestone is yellowish and softer. It is oolitic (made from little eggs of calcite). Cretaceous limestone is very white and chalky. It is made from the skeletal remains of planktonic organisms.
Although limestone can form into other types of metamorphic rock, the most common form is marble.
in its natural state limestone is normally pure white
White is considered a pure colour because it is plain and is following the rules
we wear white to symolise we are starting new and pure as christians. the colour white means 'pure and fresh'
White as pure, dry substance
Pure calcium oxide is white.
chalk is a very pure form of limestone made of calcite. i think >:P
Bit of a silly question WHITE tigers are pure WHITE With black stripes!
Pure white
Pure sodium carbonate is white.
White Gold is a alloy of gold and other metals (usually silver), it is not pure gold. Pure gold is golden in colour.