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HAEMATITE
Haematite, also known as kidney ore is a lustrous, opaque, blue-black to silvery grey mineral often used in jewellery. Haematite is an iron oxide that is red in colour which can be seen when powdered or scraped on a hard surface. It was often used for seal stones, cut as intaglio. Used for beads, faceted, carved or cut as a cabochon for use as a gemstone. The ancient Egyptians carved haematite into scarabs. Haematite is found in England, Mexico, Australia, Brazil, and the Lake Superior region of North America.
Hardness 5 to 6