Hematite - Wikipedia
Hematite (/ ˈ h iː m ə ˌ t aɪ t, ˈ h ɛ m ə-/), also spelled as haematite, is a common iron oxide compound with the formula, Fe 2 O 3 and is widely found in rocks and soils. [6] Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of Fe
Hematite: A primary ore of iron and a pigment mineral - Geology.com
Hematite is found as a primary mineral and as an alteration product in igneous, metamorphic, and sedimentary rocks. It can crystallize during the differentiation of a magma or precipitate from hydrothermal fluids moving through a rock mass.
Hematite | Definition, Uses, & Facts | Britannica
2024年12月3日 · Hematite is found as an accessory mineral in many igneous rocks; commonly as a weathering product of siderite, magnetite, and other iron minerals; and almost universally as a pigmenting agent of sedimentary and other rocks. For …
Hematite | Properties, Formation, Uses, Occurrence - Geology …
2023年9月8日 · Hematite is a mineral and a common form of iron oxide. It is known for its distinctive reddish-brown to black metallic luster. The name “hematite” is derived from the Greek word “haima,” which means blood, due to its reddish …
Hematite | Common Minerals - University of Minnesota Twin Cities
Hematite occurs in a variety of igneous and metamorphic rocks, but is most abundant in sedimentary settings. In sedimentary rocks, hematite can either have formed from have originally formed directly from direct precipitation out of marine waters, or as a concentration and enrichment deposit formed from groundwater.
Hematite, a Shape-shifting Mineral From the Stone Age
2023年11月21日 · Hematite is an iron oxide in its base form that is 70 percent iron and 30 percent oxygen, and has the chemical formula of Fe 2 O 3. As one of the most abundant minerals on the planet, it is perfect for mining to produce iron and iron-based derivatives like steel.
Hematite: Properties, Uses, Meaning – Geology In
Hematite is an iron oxide mineral, commonly found in rocks and soil. It's the most important source of iron ore and is also used in jewelry and pigments. Hematite has a distinctive metallic luster and comes in various colors, ranging from black and gray to reddish-brown.
Hematite: mineral characteristics, properties, uses - ZME Science
2024年2月7日 · Hematite is an iron oxide mineral widely found in rocks and soils across the globe. Its name comes from the Greek word haima, meaning blood — this refers to the red streak it leaves when rubbed...
Hematite ‣ GEOLOGY HUB
Hematite, a mineral of profound geological significance, stands as one of the most abundant and economically vital iron ores on Earth. Let’s delve into its intricacies, exploring both its physical and chemical properties.
Hematite - Geology Page
2014年4月19日 · Hematite, also spelled as haematite, is the mineral form of iron (III) oxide (Fe 2 O 3), one of several iron oxides. Hematite crystallizes in the rhombohedral lattice 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 (1,740 °F).