idiomorphic


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idiomorphic

[¦id·ē·ō¦mȯr·fik]
(petrology)
automorphic
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They are made of idiomorphic crystals of diopside, 1 to 5 cm length, and scarce xenomorphic orthopyroxene.
The southern Central America puzzle: cronology and structure: a review
General appearance: Rosette aggregates about 1 mm in diameter composed of idiomorphic crystals about 0.
Abstracts of new mineral descriptions
The continuous normal zoning displayed by plagioclase in the two analysed samples for the present study, characterised by Ab-rich contents towards the rim of idiomorphic prisms (Fig.
Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas
The Suursaari quartz porphyry is a good example of a volcanic rapakivi rock, containing idiomorphic quartz phenocrysts.
Using a titanium-in-quartz geothermometer for crystallization temperature estimation of the Palaeoproterozoic Suursaari quartz porphyry/Titaan-kvartsis geotermomeetria meetodi rakendamine paleoproterosoilise Suursaare kvartsporfuuri kristalliseerumistemperatuuride maaramisel
4% orthoclase), the original twinning structure is still apparent, except where plagioclase bas altered to illite or carbonates, Idiomorphic olivine is present as microporphyroblasts, nearly always completely altered.
Famous mineral localities: Las Vigas: Veracruz, Mexico
Secondary electron and TEM images show that the green material constituting the needle-like coating of the filaments actually consists of idiomorphic lath-like crystals < 10.
Glauconitic laminated crusts from hydrothermal alteration of Jurassic pillow-lavas (Betic Cordillera, S Spain): a microbial influence case
The altered diorites are fine-to coarse-grained, inequigranular and are characteristically porphyritic, but some rocks show typically idiomorphic porphyritic and poikilitic textures.
Mineralogy and geochemistry of diorites and associated hydrothermal sulfide mineralization of Gawuch Formation in Drosh area, Chitral, northern Pakistan
The vein fillings are composed of loose crystals, from a few micrometers to 1 mm in size, of rhombohedral habit and of a pale to dark brown colon Sometimes the crystals show an idiomorphic habit, and a compositional zoning can be observed by BEI, with an inner zone of Na/K > 1 (natrojarosite) and an outer zone with Na/K < 1 (jarosite).
Secondary minerals of the Mazarron-Aguilas mining district, Murcia Province, Spain
Several monazite and zircon crystals were carefully selected by picking the most idiomorphic crystals to avoid all possibility of inheritance for ID-TIMS.
Zircon U-Pb and Hf isotopic constraints on the genesis of a post-kinematic S-type Variscan tin granite: the Logrosan cupola (Central Iberian Zone)
The gabbro-norites are sub- equigranular, medium- to coarse-grained, hypidiomorphic to idiomorphic and massive, i.
Petrographic characteristics and mechanical properties of rocks from Khagram-Razagram area, Lower Dir, NWFP, Pakistan
Superb, idiomorphic, La-dominant allanite / REE-rich epidote crystals have been found in the Nueva Vizcaya mine, Burguillos del Cerro (Badajoz Province).
The Nueva Vizcaya mine: Burguillos del Cerro Badajoz, Spain
In some gneisses, and in the previously described schists, there are also small idiomorphic or subidiomorphic garnets (Fig.
Structure of the Andean Palaeozoic basement in the Chilean coast at 31[degrees] 30' S: geodynamic evolution of a subduction margin

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