Tourmaline (English spelling)

Japanese: トルマリン(英語表記)tourmaline
Tourmaline (English spelling)
It is a silicate mineral with a complex composition, which is why it has the widest variety of colors among gemstones. Parti-colored tourmaline, which has two or more colored areas in a single crystal, and watermelon, which is green on the outside and red or pink on the inside, are characteristics unique to tourmaline and are highly valued. There are also single-colored varieties ranging from colorless to red, yellow, green, blue, purple, brown, and black. The most common is green tourmaline, but each has its own name, such as red or pink rubellite, dark blue indicolite, colorless achroite, and black schorl.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
複雑な組成のケイ酸塩鉱物で,そのために宝石のうちでも多様な色彩をもつ。一つの結晶石で二つあるいはそれ以上の色の部分をもつパーティカラード・トルマリンparti‐colored t.や,外側が緑色,内側が赤ないしピンク色の,スイカを思わせる〈ウォーター・メロン〉はトルマリンのみに見られる特徴で,珍重される。また単色でも,無色から赤,黄,緑,青,紫,褐色,黒までの色をもつものが見られる。代表的なものは緑色のグリーン・トルマリンであるが,赤ないしピンクのルーベライトrubellite,濃青色のインディコライトindicolite,無色のアクロアイトachroite,黒色のショールschorlなど,それぞれ別名をもっている。

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

<<:  Truman, Harry S.

>>:  Trouvères (English spelling)

Recommend

Erlangen program

When German mathematician F. Klein became professo...

Isoyokobasami - Isoyokobasami

A marine animal belonging to the order Decapoda, ...

SDP - SDP

《 self-development program 》 Self-development plan...

Ramon, G. (English spelling) RamonG

...Toxoids against snake venom have also been cre...

Survey method - Survey method (English spelling)

A type of meaningful selection method for sample s...

Springfield (English spelling)

A city in central Illinois, USA. The state capital...

Taung (English spelling)

Also called Taungs, it is the name of a place in t...

Aheng Incident

This was an incident in the process of establishi...

Transportation economics - economics of transportation

A field of applied economics that uses economic m...

Ballala II

...It is said that it was the Jain philosopher Ra...

Keisei Electric Railway

A private railway company. Founded as Keisei Elect...

Lysichiton americanum (English spelling)

… [Mitsuru Hotta]... *Some of the terminology tha...

Iwashimotsuke - Iwashimotsuke

A deciduous shrub of the Rosaceae family (APG cla...

Russkaya Pravda (English spelling)

There are two known names for Russian legal codes....

Ophthalmology - Cancer

The name of the medical department of ophthalmolo...