hematite no Oxford-Paravia Italian Dictionary

hematite no Dicionário PONS

Exemplos unilingues (não verificados pela redação)

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This includes iron ore, magnetite, hematite and often pyrrhotite.
en.wikipedia.org
The large armlet of pierced gold ("opus interrasile") showed traces of hematite on the reverse side, which probably would have been used as a type of jeweller's rouge.
en.wikipedia.org
It consists of a breccia containing host rock clasts (dolomite, sandstone, andesite) which is intensively hematite, chlorite and sericite altered.
en.wikipedia.org
After sulfates cemented the sediments, hematite concretions grew by precipitation from groundwater.
en.wikipedia.org
Not only turf, but also hematite ores were utilized, which involved building mines and shafts to provide access.
en.wikipedia.org
At the type locality it was formed in burned fragments of petrified wood in coal dumps, associated with lime, periclase, magnesioferrite, hematite, srebrodolskite and anhydrite.
en.wikipedia.org
These blueberries were found to be composed almost entirely of the mineral hematite.
en.wikipedia.org
Hematite is usually formed in the presence of water.
en.wikipedia.org
However, once it is deposited it must be dehydrated in order to come to an equilibrium with hematite.
en.wikipedia.org
Hematite has a triagonal crystal system and experiences twinning by having an approximately hexagonal close-packed oxygen framework and has a structural orientation similar to olivine.
en.wikipedia.org

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