One of my friends is a big fan of pretty rocks and takes the most amazing micro photographs of them. So, when I saw that a whole floor at the Australian Museum in Sydney was dedicated to rocks and geological stuff I just had to go.
And I can sure see why she is fascinated with them — there are some AMAZING structures and colours below the dirt!
Here are a couple of the photos I took.
That line of stones shows the colour variations in sapphires found in Australia. And you thought sapphires were just blue!
Rhonda Bracey: At Random 
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