Maghemite

Also found in: Wikipedia

0.01 sec.

maghemite [mag′he‚mīt]

(mineralogy)

γ-Fe₂O₃A mineral form of iron oxide that is strongly magnetic and a member of the magnetite series.

Maghemite

a mineral, a magnetic modification of the ferric oxide γ — Fe₂O₃. Generally containing admixtures of FeO and TiO₂, maghemite is unstable in the natural state and is readily converted into stable hematite. It crystallizes in the tetragonal (pseudoisometric) system characterized by a defective spinel structure of the magnetite type. Maghemite has a hardness of 5-6 on Mohs’ scale and a density of 4,700-4,900 kg/m³. It is opaque and has a dark brown color with a steel-like hue. Maghemite occurs in nature only in the form of microscopically fine depositions in magnetite oxidation products and in titanomagnetite (with hematite, iron hydroxides). It is sometimes found in limonite and laterite as the product formed during the surface weathering of minerals containing iron.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		References in periodicals archive	?		Encyclopedia browser	?		Full browser	?
No references found			Her team found ultra fine-grained crystals of magnetic magnetite, maghemite, hematite, goethite, and aluminum silicates in ant antennae. Miniscule magnets in ant antennae act as internal GPS by Asian News International 7) has been obtained also from Silurian carbonates (diagenetic dolomites) of the Rostla quarry in central Estonia, where the magnetization is carried by magnetite and possibly by maghemite (Plado et al. Multiply remagnetized Silurian carbonate sequence in ... by Preeden, Ulla; Plado, Juri; Mertanen, Satu; Puura, Vaino / Estonian Journal of Earth Sciences 3], or maghemite, and can be divided into two size groups (Figure 1A). Induction of inflammation in vascular endothelial cells by metal ... by Barakat Abdul I. / Environmental Health Perspectives			Magellanic Clouds Magellanic Stream Magellanic System Magelonidae Magendie, Francois Magendie, François magenstrasse Magenta Magenta, Battle Magero Magerö Magerov Maggi-Righi-Leduc effect Maggie Maggie L. Walker National Historic Site Maggiore Maggiore, Lago Maggiore, Lake maggot maggot therapy maggotbox Maggots, Cabbage and Turnip Magh Sankranti Magha Puja Magha Purnima Maghemite Magherafelt Maghi Maghreb Maghrib Magi Magic magic acid magic bullet Magic Cap magic carpet magic cookie magic eye magic lantern Magic Link Magic Mountain, The Magic Mouse magic number Magic Number Nuclei magic numbers Magic Paper magic realism magic smoke Magic Square Magic Switch Story magic tee			Maggiore, Lago Maggiore, Lake MAGGLE GOOP STRIPS maggot maggot maggot Maggot Debridement Therapy Maggot Debridement Therapy Maggot Debridement Therapy Maggot Debridement Therapy Maggot for Life Maggot therapy Maggot therapy Maggot therapy Maggot-pie maggotbox Maggotiness Maggotish Maggots Maggots Maggots Maggots, Cabbage and Turnip maggoty maggoty maggoty Magh Magh Sankranti Magha Magha Puja Magha Purnima Maghemite Magherafelt Magherafelt Maghet Maghi Maghreb Maghreb Maghreb Arab Union Maghreb Arab Union Maghreb Permanent Consultative Committee Maghreb Private Equity Fund Maghreb State Maghreb States Maghreb Virtual Science Library Maghrebi Maghrebi Maghrébine de Transport & Auxiliaires Maghrib Maghrib Maghrib (Prayer) Maghrib (Prayer) Maghribi Maghribi Maghribian Maghribian Magi Magi Magi Magi magian magian

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.