Mixed crystal

Japanese: 混晶 - こんしょう(英語表記)mixed crystal
Mixed crystal

A homogeneous crystal formed by mixing two or more substances that have similar crystal structures and little difference in ionic or atomic radius. A type of solid solution. Combinations of metals such as gold and silver, or gold and copper, form mixed crystals with all kinds of composition ratios. Inorganic salts such as alum and Tutton's salt also tend to form mixed crystals. Many minerals are known to form mixed crystals in nature. For example, plagioclase can be seen as a mixed crystal of anorthite CaAlSi 2 O 8 and albite NaAl 2 Si 3 O 8 .

[Iwamoto Shinbu]

[Reference] | Solid solution

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

互いに結晶構造が類似し、イオン半径あるいは原子半径にあまり大きな差がないような2種以上の物質が混合して均一な結晶となったもの。固溶体の一種。金と銀、金と銅などの金属の組合せでは組成があらゆる割合となる混晶をつくる。ミョウバンやタットン塩などの無機塩も混晶をつくりやすい。天然にも多くの鉱物で混晶となったものが知られている。たとえば斜長石は灰長石CaAlSi2O8と曹長石NaAl2Si3O8との混晶とみることができる。

[岩本振武]

[参照項目] | 固溶体

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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