Definition of Porcellanite. Meaning of Porcellanite. Synonyms of Porcellanite

Here you will find one or more explanations in English for the word Porcellanite. Also in the bottom left of the page several parts of wikipedia pages related to the word Porcellanite and, of course, Porcellanite synonyms and on the right images related to the word Porcellanite.

Definition of Porcellanite

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Meaning of Porcellanite from wikipedia

- Porcellanite or porcelanite, is a hard, dense rock somewhat similar in appearance to unglazed porcelain. It is often an impure variety of chert containing...
- constituent mineral in a type of thermally-metamorphosed rock called porcellanite. Mullite is present in the form of needles in porcelain. It is produced...
- and porphyritic Porphyritic rhyolite Pyroclastic Rhyolitic tuff or breccia Vesicular Pumice Amygdaloidal None Vitreous (Gl****y) Obsidian or porcellanite...
- durable flint, porcellanite, which is found at the foot of the eastern scree slope of the mountain. Three small outcrops of porcellanite can be seen on...
- back as the Mesolithic period. A Neolithic stone axe factory featuring porcellanite stone is to be found in Brockley, a cluster of houses within the townland...
- and often polished. The products of axe factories next to sources of porcellanite, an especially good stone, were traded across Ireland; the main ones...
- places, such as: Great Langdale, England (tuff) Rathlin Island, Ireland (porcellanite) Krzemionki, Poland (flint) Neolithic flint mines of Spiennes, Belgium...
- Rocks from the Monterey formation consist mostly of silicate shales and porcellanite (silica derived from fossil plankton in an intermediate to deep-water...
- non-volcanic sediments. Doleritic sills in siltstone and mudstone. A Porcellanite deposit was quarried by the Māori but note that some deposits may be...
- County Antrim 54°34′16″N 5°56′42″W / 54.571°N 5.945°W / 54.571; -5.945 (Malone ****d) 1869–1918 Ulster Museum, Belfast 19 polished porcellanite axes...