candle chart question

I have tried looking all over the internet for the answer to my question but I am getting nowhere.

Maybe it's something really dumb that I just don't understand.

When reading a candle chart, the open and close price are shown at the top and bottom of the candle bodies depending if it is bullish or bearish.

How is it that sometimes the close price of 1 candle, is dramatically different than the opening price of a candle following directly next to it?

I would post a picture as an example if I could,

but sometimes I see a 10 minute candle close at lets say $200, and the one directly next to it opens at $160. Shouldn't the opening price of the second candle be exactly the same as the closing price of the one before it?

Thank you for your time.