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Samenvatting - miller indices (Inleiding tot de mineralogie)

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Dit is een samenvatting van het hoofdstuk 'miller indices' uit het vak 'inleiding tot de mineralogie'.

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Uploaded on
January 28, 2024
Number of pages
3
Written in
2023/2024
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Summary

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Miller indices
Symbolen van de kristalvlakken
 Kristalpolyeders gekenmerkt door hoeken tussen vlakken
o Tov de kristallografische assenstelsels (referentiesymmetrie)
 A, b, c as (herman Moguin notatie)
 Kubbisch: eenheidsafstand (a, b, c) = gelijk
o Richtingen vd vlakken tov elkaar
 Elementaire vlakken
 // vlakken = hetzelfde vlak

Wet van Hauy (wet der rationale indices)
 Verhoudingen van assen-eenheden ≠ rationale getallen (coËff van Weiss/Miller wel)
 Waarde meestal <6
 Symmetrie-assen van kristal enkel 2,3,4,6-tallig zijn
o cos α = rationaal getal
o α = 60°, 90°, 120° en 180°

Positieve en negatieve indices
 Minteken boven de index schrijven
 kristallografisch assenstelsel in het centrum van de bol
o assenvlakken verdelen bol in octanten
 vlakken soms verlengt worden om kristallografische assen te doorsnijden




1) negatieve kristalvlakken
= onderste vlak doorsnijdt de negatieve c-as
 OPM! (001) // (001)




2) Andere voorbeelden  ppt
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Samenvattingen Geologie

Hallo! ik ben een student aan de Ugent die geologie studeert. Je vindt hier voor bijna alle vakken samenvattingen en ingevulde examenvragen (twieoos). Bekijk zeker de voordeelpakketjes. Je mag mij ook altijd een berichtje sturen op instagram (@), ik wil gerust voor een iets lagere prijs mijn samenvattingen direct aan jou verkopen!!

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