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hematite
[ hee-muh-tahyt, hem-uh- ]
noun
- a very common mineral, iron oxide, Fe 2 O 3 , occurring in steel-gray to black crystals and in red earthy masses: the principal ore of iron.
hematite
/ ˈhɛmətaɪt; ˈhɛmətaɪt; ˌhiː-; ˈhiːm-; ˌhɛməˈtɪtɪk /
noun
- a red, grey, or black mineral, found as massive beds and in veins and igneous rocks. It is the chief source of iron. Composition: iron (ferric) oxide. Formula: Fe 2 O 3 . Crystal structure: hexagonal (rhombohedral) Also callediron glance
hematite
/ hē′mə-tīt′ /
- A reddish-brown to silver-gray metallic mineral. Hematite occurs as rhombohedral crystals, as reniform (kidney-shaped) crystals, or as fibrous aggregates in igneous, metamorphic, and sedimentary rocks. It is the most abundant ore of iron, and it is usually slightly magnetic. Chemical formula: Fe 2 O 3 .
Derived Forms
- hematitic, adjective
Other Words From
- he·ma·tit·ic [hee-m, uh, -, tit, -ik, hem-, uh, -], adjective
Word History and Origins
Word History and Origins
Origin of hematite1
Example Sentences
An iron oxide called hematite improves tone, and acetylglucosamine, an enzyme derived from sugar, exfoliates for extra glow.
Ferruginous masses, probably consisting of brown hematite, come also from this island.
The ore used was from Bilbao, and known as the Ruby Mine, and was a good average hematite.
Papa says the Craven mines are remarkable, the new one with all that hematite is a fortune by itself.
The streak of limonite is yellow, thus distinguishing it from hematite.
He takes the softest hematite, grinds it upon a porphyry slab; and then carefully elutriates it.
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