Aphanites (adj. aphanitic; from Ancient Greek αφανης (aphanḗs) 'invisible') are igneous rocks that are so fine-grained that their component mineral crystals...
3 KB (210 words) - 13:56, 27 July 2023
Aphantites (redirect from Aphanites)
Taxon identifiers Aphanites Wikidata: Q4779489 GBIF: 4624037 IRMNG: 1284653 Open Tree of Life: 2870350 Paleobiology Database: 13622...
1 KB (70 words) - 13:11, 18 April 2022
rock – A group of varieties of lamprophyre, mostly rich in hornblende Aphanite – Igneous rock composed of very small crystals invisible to the naked eye...
14 KB (2,187 words) - 23:33, 16 April 2024
tiny matrix crystals and the much larger phenocrysts. Porphyries may be aphanites or phanerites, that is, the groundmass may have microscopic crystals as...
26 KB (3,019 words) - 14:36, 2 June 2024
Soapstone Tectonite Whiteschist Specific varieties Adamellite Appinite Aphanite Borolanite Blue Granite Epidosite Felsite Flint Ganister Gossan Hyaloclastite...
7 KB (562 words) - 05:01, 17 August 2024
with water (e.g.; amphibole and biotite replacing pyroxene). However, in aphanites, or rocks with phenocrysts clearly out of equilibrium with the groundmass...
9 KB (1,235 words) - 20:57, 18 March 2024