Haematite is a special case of the more general ilmenite structure.

赤更为一般的钛型结构中一个特的情况。

Quartz, zircon, magnetite, gold are major constituents of littoral placers in Shandong province, while shell, ballstone, ilmenite, rutile being secondary.

山东省滨海砂以英、锆英、、砂金等为主,其次为贝壳、球、钛、金红等。