Ubarobite - Ubarobite

Japanese: ウバロバイト - うばろばいと
Ubarobite - Ubarobite

…Among andradites, the bright green demantoid is rare and highly prized. There are very few gemstones of uvarovite. For the mineral properties of garnets, see the entry on garnet. …

From [Garnet (Pomegranate)]

...It is one of the important rock-forming minerals, belongs to the cubic crystal system, and is a general term for a group of minerals belonging to the garnet group with the chemical composition R II 3 R III 2 Si 3 O 12 (where R II is Ca, Mg, Fe 2+ , Mn, and R III is Al, Fe 3+ , Cr, etc.). The end members are pyrope (Mg 3 Al 2 Si 3 O 12 ) , almandine (Fe 3 Al 2 Si 3 O 12 ) , spessartine (Mn 3 Al 2 Si 3 O 12 ) , grossular (Ca 3 Al 2 Si 3 O 12 ) , andradite (Ca 3 Fe 2 Si 3 O 12 ) , uvarovite (Ca 3 Cr 2 Si 3 O 12 ) , knorringite (Mg 3 Cr 2 Si 3 O 12 ) and hydrogrossular (Ca 3 Al 2 Si 2 O 8 (SiO 4 ) 1~ m (OH) 4 m ) in which some of the Si has been replaced by 4(OH). Andradite with a high Ti content is called melanite. …

*Some of the terminology explanations that mention "Uvarovite" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…アンドラダイトandraditeのうちで,鮮やかな緑色のデマントイドdemantoidは希少価値があり,とくに珍重される。ウバロバイトuvaroviteには宝石種のものはほとんどない。なお,ガーネットの鉱物的性質については〈ザクロ石〉の項を参照されたい。…

【ザクロ石(柘榴石)】より

…重要な造岩鉱物の一つであり,立方晶系に属し,化学組成はRII3RIII2Si3O12(ここでRIIはCa,Mg,Fe2+,Mn,RIIIはAl,Fe3+,Crなど)で表されるザクロ石族に属する一群の鉱物の総称である。端成分はパイロープMg3Al2Si3O12,アルマンディンalmandine Fe3Al2Si3O12,スペサルティンspessartine Mn3Al2Si3O12,グロッシュラーgrossular Ca3Al2Si3O12,アンドラダイトandradite Ca3Fe2Si3O12,ウバロバイトuvarovite Ca3Cr2Si3O12,ノーリンジャイトknorringite Mg3Cr2Si3O12とSiの一部を4(OH)が置換したハイドログロッシュラーhydrogrossular Ca3Al2Si2O8(SiO4)1~m(OH)4mである。またTiの多いアンドラダイトはメラナイトmelaniteと呼ばれている。…

※「ウバロバイト」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  Uvarov, BP - Uvarov

>>:  Uvala - Uvala (English spelling) uvala

Recommend

Ignatius of Antioch - Ignatius of Antioch

…After a pilgrimage to Jerusalem (1523-24), he st...

Wolff, E. (English spelling) WolffE

...Artificially growing and multiplying microorga...

Arc discharge

This is the most advanced type of gas discharge, ...

Boron carbide (boron carbide)

Boron carbides are said to exist with compositions...

Czechoslovakia - Czechoslovakia (English spelling)

A country that existed in the center of Europe. F...

Mainichi Broadcasting System Co., Ltd. - Mainichi Broadcasting

A private television and radio broadcasting compan...

Chauliops fallax

...The giant stink bug Piocoris varius and the lo...

Condyloma flatus - Hempeikonjiro-ma

This is a specific type of papular syphilis rash ...

Aosoza (Sarugaku)

...There were three sarugaku troupes, Waya, Katsu...

Queen Elizabeth (rose) (English spelling) Queen Elizabeth

…(c)Grandiflora Rose: An intermediate type betwee...

Achroite

...In addition, even in single colors, there are ...

Lake Pátzcuaro (English spelling)

A lake in the northern part of the state of Michoa...

Kanmon Bridge

This is a bridge for automobiles built over Hayat...

Lasiocampidae

...They are found in almost all of Japan, the Kor...

Nöldeke, Theodor

Born: March 2, 1836, Harburg [Died] December 25, 1...