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Volcanic activity. Try http://gsa.confex.com/gsa/2001AM/finalprogram/abstract_21743.htm and http://www.springerlink.com/content/r86810n0618t030r/ and http://www.galleries.com/minerals/oxides/hematite/hematite.htm and http://www.mindat.org/min-1856.html and wiki's own: http://en.wikipedia.org/wiki/Hematite.
What else can I help you with?
Can other minerals scratch the hematite?
Yes, other minerals can scratch hematite. Hematite has a hardness of 5.5-6.5 on the Mohs scale, so minerals with a higher hardness (like quartz or corundum) can scratch hematite.
What is the word equation for the reaction that happens when iron forms a hematite in the Earth?
The word equation for the reaction when iron forms hematite in the Earth is: Iron + Oxygen → Hematite.
What group does hematite belong to?
Magnetite belongs to the spinel group of minerals
What objects are made with Hematite?
Hematite is a type of iron ore, if you grind it into a fine powder it makes the natural pigment ochre which is used by native people in southern and east Africa (mixed with fat) to adorn their bodies. Hematite can also be used to make a form of black shiny jewelery. == ==
What are bauxite and hematite called since they produced useful materials?
Bauxite and hematite are called ores, since they both produce useful minerals.(Bauxite - Aluminum)(Hematite - Iron)
What did the olmecs use hematite for?
Scientists think they made Mirrors out of Hematite.
What is the definition of hematite rosary beads?
Hematite is a mineral composed largely of iron. Hematite rosary beads would be beads made of hematite used for a rosary.
What is a Hematite ring?
A ring made of hematite. Hematite is the mineral form of iron and is a dark gray color, sometimes magnetic.
What is a magnetic ball made of?
hematite
What are special properties of hematite?
Hematite is a mineral known for its metallic luster and black to silver-gray color. It has a high density and is often magnetic, attracting objects made of iron. Hematite is also used in jewelry and as a pigment due to its vibrant red color when powdered.
Can solid be hematite or brick?
hematite
What did the olmecs make from hematite?
they made mirrours i think
Is hermatite made of iron and oxygen?
Yes, hematite is an iron mineral, the oxide Fe2O3.
What is the metal in hematite?
Hematite is an ore of iron.
Is Hematite a mineral?
Yes, hematite is a mineral.
What is Rainbow Hematite?
Hematite intermixed with Goethite is also known as Rainbow Hematite and is wonderfully iridescent.
Is a iron man made?
no, it is naturally found in hematite ore under the earths surface
