These samples of hematite are on display at the Smithsonian Museum of Natural History. The size of the sample is about 15 cm high.

The name hematite comes from the Greek word for blood. The hematite is black, but when powdered or fragmented can take colors ranging from ochre red to jet black. An opaque mineral with a dull lustre, it has been known as "black diamond". Historically it was used in the making and coloration of pottery. It was also made into a paste from which beads were made and hardened, and appears commonly today as black beads in costume jewelry.

This sample of hematite is formed with quartz and has a very different appearance. The sample is about 5x8 cm and is from Switzerland.

This hematite sample is from Dognecea, Banat, Romania.

This hematite is formed with magnetite. The sample is about 14x9 cm and is from Franklin, New Jersey.

Formed with rutile and quartz, this hematite sample is from Cavradi, Grissons, Switzerland. It measures about 15x10 cm.

Selection of common minerals
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