| Titanic acid occurs in nature crystallized in anatase, arkansite, brookite, and rutile. |
| Kyanite, garnet, monazite, and amphibole are common minerals, while apatite, anatase, titanite, corundum, pyroxene, and epidote are rare. |
| Minute crystals of brookite have been detected with anatase and rutile in the iron-ore of Cleveland in Yorkshire. |
| In case low concentration of rutile phase is added to anatase phase, photocatalytic properties of titania increase. |
| It can be classified into anatase, rutile and brokite, of which only anatase and rutile are commercially important. |
| Her late husband Walter McCrone studied the map during the 1970s and published micrographs of seemingly synthetic anatase crystals in the ink. |
