Melilite refers to a mineral of the melilite group. Minerals of the group are solid solutions of several endmembers, the most important of which are gehlenite and åkermanite. A generalized formula for common melilite is (Ca, Na) 2 (Al, Mg, Fe 2+) [ (Al, Si) Si O 7]. Discovered in 1793 near Rome, it has a yellowish, greenish-brown color.

In petrology "melilite" usually refers to minerals in the åkermanite - gehlenite series, by far the most abundant members of the group. A large number of synthetic members are known. As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

黄长岩类（melilitites)主要是由黄长石和辉石（有时包括钙钛矿）组成的超镁铁质火成岩，若为火山岩，称为黄长岩（melilitite)，若为含黄长石的侵入岩，称为黄长石岩（melilitolite)。 黄长岩类在自然界非常特殊而稀少，最著名的产地是意大利。 [1] 黄长石类的矿物种类较多，主要矿物为黄长石、橄榄石（体积分数小于10%）、辉石，似长石 (白榴石、霞石、钾霞石和方钠石族）和黑云母次之。 黄长石（melilite)是几个端元的固溶体矿物，主要包括 钙铝黄长石 和镁黄长石。 [2] 黄长 …

Melilite. Comments: Barrel-shaped root-beer colored melilite crystal with clear nepheline. Location: Udersdorf, Rhineland-Palatinate, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals

Melilite was originally described in 1796 from Capo di Bove, Alban Hills, Rome Province, Latium, Italy. The name refers to a group of minerals (melilite group) with chemically similar composition, nearly always minerals in åkermanite - gehlenite series.

melilite，英语单词，主要用作名词，作名词时译为“[矿物] 黄长石；方柱石”。

Melilite is defined as a group of minerals with a chemical composition represented by various formulas, such as Ca2(Al,Mg,Fe3+)(Al,Si)(Si,Al)O7. These minerals are challenging to identify within slag matrices and can be easily confused with other species. AI generated definition based on: Coal and Peat Fires: A Global Perspective, 2019

2022年2月3日 · The melilite group of minerals is characterized by a double SiO 4 tetrahedron forming a bow tie-like unit. Melilites are not common in nature but are quite widespread, occurring in igneous rocks, contact metamorphic rocks and meteorites. Additionally, they are a feature of slags produced by industrial processes.

Melilite, any member of a series of sorosilicate minerals that consist of calcium silicates of aluminum and magnesium. Melilites were first described in 1796 and range in color from white and yellow to brown, gray, and greenish gray. The name derives from the Greek words for honey (meli) and stone (lithos).

2010年7月1日 · Oldoinyo Lengai and the volcanic centres of the Lake Natron–Engaruka province contain melilite as a widespread mineral. Extraordinarily Na–Al-rich melilites (up to 6 wt.% Na 2 O and 9 wt.% Al 2 O 3) from recent explosive eruptions are among the most Na-rich ever reported.