In silicate minerals and magnetites existed isomorph tin.

硅酸盐物和铁中都存在类质同象态锡。

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、铁、砂金等为主,次为贝壳、、铁、金红等。

Apart from magnetite and almandine garnet, the skarn also contains these minerals: idocrase, actinolite, epidote, fluorite and andradite (another garnet mineral).

主要构成物除铁和铁铝榴外，矽卡岩尚有物如符山，阳起，绿帘，萤及钙铁榴。

Evolving process of hub dynamo which used in bicycle is presented. The performance of magnetite viz. ferrimagnetism or NdFeB is analyzed. The prospect of marketing is viewed.

摘要介绍了自行车上使用的花鼓式发电机的演变过程，分析了所用，即铁氧体或钕铁硼的性能优劣，并进行了市场前景展望。

For sinter with 25% and 50% MAC fines the iron oxides mainly consisted of hematite and magnetite, the bonding phase were mainly dicalcium silicate, glassiness, and a few amount of calcium ferrite.

配比为25%和50%的两种烧结中铁氧化物均以赤铁、铁为主，粘结相主要以铁酸钙、硅酸二钙和玻璃质为主，但铁酸钙数量不多。