A common iron oxide compound widely found in rocks and soils and mined as an important ore mineral of iron. Its crystals share their structure with corundum, large deposits occur in banded iron formations, and its rusty red streak has served as a pigment since prehistory. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Formation ClassOxide mineral (iron oxide), forming across igneous, metamorphic and sedimentary settings and as the principal ore mineral of banded iron formations. 1 Chemical Formula Hardness (Mohs)Commonly cited range is 5.5 to 6.5 on the Mohs scale; 6.0, the midpoint, is used here. Classification
Crystal SystemTrigonal (Rhombohedral) 1 Classification UseOre or Metal Extraction 1 Connections
Associated With
Iron ore minerals such as hematite are a central subject of economic geology's mineral deposit study.
Source Economic Geology (Wikipedia)
Ironstone is a sedimentary rock with a high content of iron oxide minerals, commonly hematite.
Magnetite and hematite are both principal iron oxide ore minerals.
Source Magnetite (Wikipedia)
Hematite named as an important accessory mineral of slate.
Source Slate (Wikipedia)
Classified As
Crystallizes In System
In Discipline
Source Hematite (Wikipedia)
In the Other Atlases
Mineral Species Of
Also in Divinity Atlas: of this mineral species.
Sources
1. Hematite (Wikipedia)
Wikimedia FoundationLead section
Hematite ( HE(E)M-ə-tyte), also spelled as haematite, is a common iron oxide compound with the formula Fe2O3 and is widely found in rocks and soils.
Infobox: mohs
5.5-6.5
Infobox: system
Trigonal
Hematite, live entity-description
mined as an important ore mineral of iron
View the Source Wikidata: Hematite
Wikidata Q103223
Slate (Wikipedia)
Wikimedia FoundationAssociated With: Slate, Composition sectionQuote, Associated With: Slate, Composition section
The most important accessory minerals are iron oxides (such as hematite and magnetite), iron sulfides (such as pyrite), and carbonate minerals.
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