Code: ML294
| 名稱 水矽釩鈣石 | Name Cavansite |
| 化學公式 Ca(VO)Si4O10•4H2O | Chemical Formula Ca(VO)Si4O10•4H2O |
| 莫氏硬度 3-4 | Mohs scale of Hardness 3-4 |
| 描述 釩鐵礦的名字來源於其化學成分矽酸鈣釩，它是一種深藍色的含水鈣釩鈣矽酸鹽礦物，與各種沸石礦物一起作為玄武岩和安山岩中的次生礦物存在。 釩鐵礦於1967年在俄勒岡州的Malheur縣發現，是一種相對稀有的礦物。 它與甚至更稀有的礦物五方晶體多態。 它最常見於印度的浦那和火成的大省德干陷阱。 | Description Cavansite, whose name is derived from its chemical composition, calcium vanadium silicate, is a deep blue hydrous calcium vanadium phyllosilicate mineral, occurring as a secondary mineral in basaltic and andesitic rocks along with a variety of zeolite minerals. Discovered in 1967 in Malheur County, Oregon, cavansite is a relatively rare mineral. It is polymorphic with the even rarer mineral, pentagonite. It is most frequently found in Pune, India and in the Deccan Traps, a large igneous province. |
| 小挑戰 Cavansite有什麼用？ 雖然釩鐵礦確實含有釩，因此可能是該元素的潛在礦源，但通常不將其視為礦石礦物。 但是，由於其豐富的顏色和相對稀有的特性，鈣錳礦是收藏家的首選礦物。 | Challenge What is the use of Cavansite? While cavansite does contain vanadium, and could thus be a possible ore source for the element, it is not generally considered an ore mineral. However, because of its rich color and relative rarity, cavansite is a sought after collector’s mineral. |
Reference
By 4A Nicholas 29 on 19/4/2021