- chrome-chert
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разновидность роговика, заместившая силикатные минералы хромитового перидотита
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Chrome chalcedony — Zimbabwean chrome chalcedony (known locally as mtorolite). Scale is in centimetres. General Category Oxide mineral … Wikipedia
Chert — For the Spanish municipality, see Xert. Chert Chert ( / … Wikipedia
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
Chalcedony — A cut and polished Chalcedony geode General Category Oxide mineral Chemical formula … Wikipedia
Mozarkite — is a form of chert (flint). It is the state rock of Missouri. The name is a portmanteau, formed from Mo (Missouri), zark (Ozarks), and ite (meaning rock). Mozarkite consists essentially of silica (quartz SiO2) with varying amounts of chalcedony.… … Wikipedia
Chrysoprase — This article is about the mineral. For the fictional character, see Trolls (Discworld). Chrysoprase (Poland) Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small… … Wikipedia
Moss agate — pebble, 1 inch (25 mm) long. Montana mo … Wikipedia
Agate — For other uses, see Agate (disambiguation). Agate Banded agate (agate like onyx); the specimen is 2.5 cm (1 inch) wide General Category … Wikipedia
Menilite — is a greyish brown form of the mineraloid opal.[1] It is also known as liver opal or leberopal (German), due to its color. It is called menilite because it was first described from Ménilmontant (Paris) … Wikipedia
Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category … Wikipedia
Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide … Wikipedia