FELDSPATHOID

Meaning of FELDSPATHOID in English

-ˌthȯid noun

( -s )

Etymology: International Scientific Vocabulary feldspath + -oid

: a mineral consisting of an aluminous silicate (as leucite nepheline) that has too little silica to form feldspar

• feld·spath·oi·dal | ̷ ̷ˌ ̷ ̷|thȯid ə l adjective

Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012

FELDSPATHOID — Any of a group of alkali aluminosilicate minerals similar to the feldspars in composition but having a lower silica-alkali ratio …
Английский словарь Британика
FELDSPATHOID — /feld"spa thoyd', fel"-/ , Mineral. adj. 1. Also, feldspathoidal . of or pertaining to a group of minerals similar in …
Random House Webster's Unabridged English Dictionary
FELDSPATHOID — any of a group of alkali aluminosilicate minerals similar to the feldspars in chemical composition but either having a lower …
Britannica English vocabulary
FELDSPATHOID — Any of a group of alkali aluminosilicate minerals similar to the feldspars in composition but having a lower silica-alkali ratio …
Britannica Concise Encyclopedia
FELDSPATHOID — фельдшпатид, фельдшпатоид
Большой Англо-Русский словарь
FELDSPATHOID — горн. фельдшпатоид
Англо-Русский научно-технический словарь
FELDSPATHOID — фельдшпатид, фельдшпатоид
Новый большой Англо-Русский словарь
SILICATE MINERAL — Any of a large group of silicon-oxygen compounds that are widely distributed throughout much of the solar system. The silicates …
Английский словарь Британика
NEPHELINE — or nephelite Most common feldspathoid mineral, an aluminosilicate of sodium and potassium (Na 3 KAl 4 Si 4 O 16 …
Английский словарь Британика
LEUCITE — One of the most common feldspathoid minerals, potassium aluminosilicate (KAlSi 2 O 6 ). It occurs only in igneous rocks …
Английский словарь Британика
FELDSPATHOIDAL — adjective see feldspathoid
Webster's New International English Dictionary
PEGMATOID — I. -ˌtȯid adjective Etymology: pegmat ite + -oid : pegmatitic II. noun ( -s ) 1. : a pegmatite containing …
Webster's New International English Dictionary
FELSIC — ˈfelsik adjective Etymology: fel dspar + s ilica + -ic : consisting of or chiefly consisting of feldspar or feldspathoid …
Webster's New International English Dictionary
AGPAITE — ˈagpəˌīt noun ( -s ) Etymology: Agpa, locality in southern Greenland + English -ite : any of a group of …
Webster's New International English Dictionary
RIEBECKITE — /ree"be kuyt'/ , n. an amphibolic mineral, silicate of sodium and iron, occurring usually in feldspathoid rocks. [ 1885-90; named …
Random House Webster's Unabridged English Dictionary
NEPHELINE — /nef"euh lin/ , n. a feldspathoid mineral, essentially sodium aluminum silicate, NaAlSiO 4 , occurring in alkali-rich volcanic rocks. Also, …
Random House Webster's Unabridged English Dictionary
HAÜYNITE — /ah wee"nuyt/ , n. a relatively rare feldspathoid mineral related to sodalite: sometimes confused with lapis lazuli. Also, haüyne /ah …
Random House Webster's Unabridged English Dictionary
AEGIRITE — /ay"geuh ruyt', ee"jeuh-/ , n. a mineral, mainly sodium-ferric iron silicate, NaFe·(Si 2 O 6 ), occurring in feldspathoid rocks …
Random House Webster's Unabridged English Dictionary
ACMITE — /ak"muyt/ , n. a rare pyroxene mineral, sodium-ferric iron silicate, NaFe(Si 2 O 6 ), found in feldspathoid rocks. [ …
Random House Webster's Unabridged English Dictionary
WERNERITE — variety of the feldspathoid mineral scapolite (q.v.).
Britannica English vocabulary
WAIRAKITE — hydrated calcium aluminosilicate mineral present in hot-spring deposits, notably those at Wairakei, New Zealand, and Onikobe, Japan. Like analcite, wairakite …
Britannica English vocabulary
TINGUAITE
Britannica English vocabulary
SYENITE — any of a class of intrusive igneous rocks essentially composed of an alkali feldspar and a ferromagnesian mineral. A special …
Britannica English vocabulary
SODALITE — feldspathoid mineral, a chloride-containing sodium aluminosilicate that occurs with leucite and nepheline in such igneous rocks as nephelinesyenite, trachyte, and …
Britannica English vocabulary
SCAPOLITE — any of a group of feldspathoid minerals found in calcium-rich metamorphic rocks, particularly marble, gneiss, granulite, greenschist, and skarns. Principal …
Britannica English vocabulary
NOSELITE — also called Nosean, variety of the feldspathoid mineral sodalite (q.v.).
Britannica English vocabulary
NEPHELINE — also called nephelite, or eleolite the most common feldspathoid mineral, an aluminosilicate of sodium and potassium (Na3KAl4Si4O16). It is sometimes …
Britannica English vocabulary
LEUCITE — one of the most important feldspathoid minerals, a potassium aluminosilicate (KAlSi2O6). It occurs only in igneous rocks, particularly potassium-rich, silica-poor, …
Britannica English vocabulary
CANCRINITE — rare feldspathoid mineral, an aluminosilicate that contains sodium and calcium carbonate and occurs as an alteration product of nepheline and …
Britannica English vocabulary
BASANITE — extrusive igneous rock that contains calcium-rich plagioclase feldspar (usually labradorite or bytownite), feldspathoid (usually nepheline or leucite), olivine, and pyroxene …
Britannica English vocabulary
ANALCIME — also called analcite common feldspathoid mineral, a hydrated sodium aluminosilicate (NaAlSi2O6H2O) that occurs in seams and cavities in basalt, diabase, …
Britannica English vocabulary

Webster's New International English Dictionary

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