Definitions for hematite
ˈhi məˌtaɪthematite

Princeton's WordNetRate this definition:0.0 / 0 votes

1. hematite, haematitenoun

   the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form

WiktionaryRate this definition:0.0 / 0 votes

1. hematitenoun

   An iron ore, mainly peroxide of iron, FeO.

2. Etymology: From hematite, from (lapis) haematites, from αἱματίτης λίθος, from αἷμα.

WikipediaRate this definition:0.0 / 0 votes

1. Hematite

   Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of Fe2O3. It has the same crystal structure as corundum (Al2O3) and ilmenite (FeTiO3). With this it forms a complete solid solution at temperatures above 950 °C (1,740 °F). Hematite naturally occurs in black to steel or silver-gray, brown to reddish-brown, or red colors. It is mined as an important ore mineral of iron. It is electrically conductive. Hematite varieties include kidney ore, martite (pseudomorphs after magnetite), iron rose and specularite (specular hematite). While these forms vary, they all have a rust-red streak. Hematite is not only harder than pure iron, but also much more brittle. Maghemite is a polymorph of hematite (γ-Fe2O3) with the same chemical formula, but with a spinel structure like magnetite. Large deposits of hematite are found in banded iron formations. Gray hematite is typically found in places that have still, standing water or mineral hot springs, such as those in Yellowstone National Park in North America. The mineral can precipitate in the water and collect in layers at the bottom of the lake, spring, or other standing water. Hematite can also occur in the absence of water, usually as the result of volcanic activity. Clay-sized hematite crystals can also occur as a secondary mineral formed by weathering processes in soil, and along with other iron oxides or oxyhydroxides such as goethite, which is responsible for the red color of many tropical, ancient, or otherwise highly weathered soils.

ChatGPTRate this definition:0.0 / 0 votes

1. hematite

   Hematite is a common iron oxide mineral with a shiny, dark-red or metallic gray appearance. It is one of the primary ores of iron and notable for its high iron content. Hematite is often used in jewelry and powdered for use as a pigment. Additionally, it is believed to have some healing properties in alternative medicine.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Hematitenoun

   an important ore of iron, the sesquioxide, so called because of the red color of the powder. It occurs in splendent rhombohedral crystals, and in massive and earthy forms; -- the last called red ocher. Called also specular iron, oligist iron, rhombohedral iron ore, and bloodstone. See Brown hematite, under Brown

2. Etymology: [L. haematites, Gr. bloodlike, fr. a"i^ma, a"i`matos, blood.]

WikidataRate this definition:3.0 / 1 vote

1. Hematite

   Hematite, also spelled as haematite, is the mineral form of iron oxide, one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum. Hematite and ilmenite form a complete solid solution at temperatures above 950 °C. Hematite is a mineral, colored black to steel or silver-gray, brown to reddish brown, or red. It is mined as the main ore of iron. Varieties include kidney ore, martite, iron rose and specularite. While the forms of hematite vary, they all have a rust-red streak. Hematite is harder than pure iron, but much more brittle. Maghemite is a hematite- and magnetite-related oxide mineral. Huge deposits of hematite are found in banded iron formations. Gray hematite is typically found in places where there has been standing water or mineral hot springs, such as those in Yellowstone National Park in the United States. The mineral can precipitate out of water and collect in layers at the bottom of a lake, spring, or other standing water. Hematite can also occur without water, however, usually as the result of volcanic activity. Clay-sized hematite crystals can also occur as a secondary mineral formed by weathering processes in soil, and along with other iron oxides or oxyhydroxides such as goethite, is responsible for the red color of many tropical, ancient, or otherwise highly weathered soils.

Editors ContributionRate this definition:0.0 / 0 votes

1. hematite

   A type of natural occurring mineral created and produced in various forms.

   Hematite is a mineral found in various countries around the world.

   
   

   Submitted by MaryC on January 1, 2017  

Matched Categories

1. • Iron Ore

How to pronounce hematite?

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How to say hematite in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hematite in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of hematite in Pythagorean Numerology is: 9

Examples of hematite in a Sentence

1. Mary Parenteau:

   This work may support a renewed interest in sampling ancient iron deposits on Earth (e.g., Precambrian iron formations) to search for evidence of microbial life, regardless of their low organic carbon content, and may support analysis of organics in iron deposits on Mars, such as Hematite Ridge in Gale Crater.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=hematite
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hematite
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hematite
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/hematite
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=hematite