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词汇 anhedral
释义 BETA

Examples of anhedral


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It also occurs as anhedral interstitial grains among plagioclase.
Sulphides are generally fine-grained and consist of anhedral mixtures of pyrrhotite and chalcopyrite with some pentlandite and cubanite.
Anhedral magnetite-ilmenite blebs are interstitial to silicate phases.
Anhedral plagioclase is interstitial to augite and olivine, and subhedral, reddish-brown phlogopite is interstitial to plagioclase and pyroxene.
Some anhedral grains contain inclusions of perthite and zircon.
Anhedral, clear grains (< 2 %) are presumably fragments of rare (< 1 %) larger grains.
Quartz occurs as large, anhedral, fractured crystals with undulose extinction, and is the dominant groundmass mineral.
The amphibole grains are subhedral to anhedral.
Albite commonly occurs as euhedral to subhedral laths, but it also forms small anhedral grains in the matrix of microgranites.
Quartz occurs as large anhedral crystals and it is the dominant groundmass mineral.
Anhedral to subhedral grains of pyrite are randomly scattered throughout the rock.
Quartz (28-33 vol. %) occurs as anhedral grains (1-2.5 mm across), or occasionally as interstitial seriate-textured small grains.
Microprobe and scanning electron microscope analysis also identified frequent samarskite, in euhedral to anhedral crystals, devoid of any alteration.


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