Magnetite

Magnetite rock – what does it take to turn it into lodestone?

Weatherwatch: How does magnetite become magnetised? 2011

Magnetite crystals on Earth can be from both chemical and biological origin, but the later are a discernible population and are, AFAIU, reliably known as fossils.

New Findings On Alan Hills Meteorite Point to Microbial Life | Universe Today 2009

Magnetite: People are always amazed by this one - the magnetic properties surprise people and they will play with it forever.

5 Minerals ReBecca Foster 2008

Magnetite: People are always amazed by this one - the magnetic properties surprise people and they will play with it forever.

Archive 2008-09-01 ReBecca Foster 2008

The principle ores of iron are Hematite, (70% iron) and Magnetite, (72 % iron).

Iron 2007

Taconite is a low-grade iron ore, containing up to 30% Magnetite and Hematite.

Iron 2007

Magnetite enrichment (black) in a sand sequence, Dereköy

Interactive Dig Sagalassos - Isotope Archaeology Survey Report 1 2003

Magnetite has the formula Fe_ {3} O_ {4} and is a combination of FeO and

An Elementary Study of Chemistry William McPherson

Magnetite seems to have acquired its polarity in the same manner, namely by the earth's induction, when the ore contains a large enough percentage of pure iron.

Scientific American Supplement, No. 430, March 29, 1884 Various

Magnetite and Kaolin are present in small quantities.

The Long Labrador Trail Dillon Wallace 1901