- quartz porphyrite
- A porphyrite carrying quartz as an accessory constituent; the representative in the medium grain-size group of the fine-grained dacite.
Dictionary of automotive terms. 2015.
Dictionary of automotive terms. 2015.
porphyrite — ˈpȯ(r)fəˌrīt noun ( s) Etymology: Latin porphyrites purple colored stone, porphyry, from Greek porphyritēs (lithos), from porphyra purple + itēs, adjective suffix 1. : an Egyptian red porphyry … Useful english dictionary
Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… … Wikipedia
Formation of rocks — This article discusses how rocks are formed. There are also articles on physical rock formations, also known as strata, and the formal naming of geologic formations. The three main ways rocks are formed: * Sedimentary rocks are formed through the … Wikipedia
Anaimalai Hills — The Anaimalai Hills ( ta. ஆனைமலை) or Anamala Hills (in Malayalam) is a range of mountains in the Western Ghats in Tamil Nadu and Kerala states of South India. The name Anaimalai derives from the Tamil word Anai meaning elephant [Fabricius, Johann … Wikipedia