Dicționar Român. 2013.
Mineraloid — A mineraloid is a mineral like substance that does not demonstrate crystallinity. Mineraloids possess chemical compositions that vary beyond the generally accepted ranges for specific minerals. For example, obsidian is an amorphous glass and not… … Wikipedia
mineraloid — /min euhr euh loyd /, n. a mineral substance that does not have a definite chemical formula or crystal form. [1910 15; MINERAL + OID] * * * … Universalium
mineraloid — noun A substance that resembles a mineral but does not exhibit crystallinity … Wiktionary
mineraloid — min·er·al·oid … English syllables
mineraloid — ˈmin(ə)rəˌlȯid noun ( s) Etymology: International Scientific Vocabulary mineral (I) + oid; probably originally formed in German : an amorphous substance that would otherwise have the attributes of a mineral; especially : a metamict substance… … Useful english dictionary
Nonmineral — A nonmineral (mineralogy) is a substance found in a natural environment that does not satisfy the definition of a mineral and is not even a mineraloid. Many non minerals are mined and have industrial or other uses similar to minerals, such as… … Wikipedia
Opal — For other uses, see Opal (disambiguation). Opal An opal bracelet. The stone size is 18 by 15 mm (0.7 by 0.6 in) General Category … Wikipedia
List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… … 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
List of minerals (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association (IMA) is the international group that recognises new minerals and new mineral names. However, minerals discovered before 1959 did not… … Wikipedia
