Thursday, 2 August 2007

Mineral Spot: Kidney Ore...

Hematite, a common iron oxide mineral, comes in a variety of habits. One of the more unusual-looking forms is what is known as a reniform, or 'kidney ore' habit, such as the one pictured. This specimen is from the well-known Cumbrian (England) locality, the Florence Mine, at Egremont. It will be listed in one of my up-coming auction lots this weekend.

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