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Diogenite

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Diogenites are an abundant type of achondrite, linked by geochemical traits such as oxygen isotopic ratios and certain elemental ratios, of which Fe/Mn is the most widely cited. The dominant mineral in diogenites is orthopyroxene. The diogenites are strongly linked with two other achondrite groups: eucrites and howardites; the three groups are collectively known as HED meteorites and may come from asteroid 4 Vesta.


Classification of Diogenite

Sub-divisions of Diogenite

Mineralogy of Diogenite

Essential minerals - these are minerals that are required within the classification of this rock:
Hypersthene(Mg,Fe)SiO3
Pyroxene > OrthopyroxeneA petrological term for Orthopyroxene Subgroup.
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
Olivine(Mg,Fe2+)2SiO4
Accessory minerals - these are minor components, often far less than 1% of the total mineral material:
ChromiteFe2+Cr23+O4
TroiliteFeS

Internet Links for Diogenite

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