| Mineral resources include lead, gold, zircon, coal, uranium, and kyanite, but most of these are not fully exploited. |
| They have parallel bright shiny mica wrapping round large grains of pink garnet, brown staurolite, or blue kyanite. |
| A heavy mineral concentrate, dominated by rutile and kyanite, yielded only a few zircons. |
| Rutile crystals, commonly associated with lazulite, pyrophyllite, and kyanite, are found at Horrsjoberg, Sweden. |
| However, most kyanite occurs as bladed crystals without well-developed terminations. |
| Growth of titanite took place during the metamorphic climax in rocks from the kyanite and sillimanite zones. |
