Fratura (mineralogia): diferenças entre revisões
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==Terminologia==
====Conchoidal fracture====
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'''[[Conchoidal fracture]]''' is a curved breakage that resembles the concentric ripples of a [[mussel]] shell. It often occurs in amorphous or fine-grained minerals such as [[flint]], [[opal]] or [[obsidian]], but may also occur in crystalline minerals such as [[quartz]]. '''Subconchoidal fracture''' is similar to conchoidal fracture, but not as curved.
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====Earthy fracture====
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'''Earthy fracture''' is reminiscent of freshly broken [[soil]]. It is frequently seen in relatively soft, loosely bound minerals, such as [[limonite]], [[kaolinite]] and [[aluminite]].
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====Hackly fracture====
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'''Hackly fracture''' (also known as '''jagged fracture''') is jagged, sharp and uneven. It occurs when metals are torn, and so is often encountered in [[native metal|native metals]] such as [[Native copper|copper]] and [[silver]].
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====Fratura que se estilhaça====
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'''Fratura que se estilhaça''' comprises sharp elongated points. It is particularly seen in fibrous minerals such as [[chrysotile]], but may also occur in non-fibrous minerals such as [[kyanite]].
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====Fratura desigual====
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'''Fratura desigual''' é auto-descritivo. Ocorre em uma ampla gama de minerais, incluindo [[arsenopirita]], [[Pirita]] e [[magnetita]].
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==Referências==
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{{identificação mineral}}
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[[it:Frattura (mineralogia)]]
[[no:brudd (mineralogi)]]
[[uk:Злам мінералів]]▼
[[ru:Излом]]
▲[[uk:Злам мінералів]]
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