Coffinite is a uranium-bearing silicate mineral with formula: U(SiO 4) 1−x (OH) 4x. It occurs as black incrustations, dark to pale-brown in thin section. It has a grayish-black streak. It has a brittle to conchoidal fracture. The hardness of coffinite is between 5 and 6.

水硅铀矿（coffinite），分子式为U (SiO4)1-x (OH)x，属于 铀矿 之一，又称 铀石。 单晶体 呈短柱状、针状，属于 四方晶系。 主要产于砂岩型沉积后生矿床中，在还原条件下形成。 水硅铀矿有两个变种： 钙水硅铀矿 和 镁水硅铀矿。 29日至1972年9月10日）的名义命名，感谢他为 科罗拉多州 西南部作出的杰出地质学研究。 [1] 正如科罗拉多高原发现的强放射性的水硅铀矿，证明沉积物中含有最多的放射性样品。 在50年代中期最初发现水硅铀矿之后，在哈佛大学， 美国地质调查 …

Coffinite mineral data, information about Coffinite, its properties and worldwide locations.

2015年7月6日 · Coffinite, USiO 4, is the second most abundant U 4+ mineral on Earth, and its formation by the alteration of the UO 2 in spent nuclear fuel in a geologic repository may control the release of radionuclides to the environment. Despite its abundance in nature, the synthesis and characterization of coffinite have eluded researchers for decades.

coffinite，英语单词，主要用作名词，作名词时译为“[矿物] 铀石；水硅铀矿”。

2020年7月22日 · Uraninite, UO 2+x is the most common U 4+ mineral in nature followed by coffinite, USiO 4, which is found as a primary phase or an alteration product in many uranium deposits. Coffinite,...

Evidence which supports formation of late-stage coffinite and brannerite includes: (1) low-Pb contents of both minerals; (2) coffinite is commonly found on the edges of uraninite, implying later deposition; and (3) coffinite is often found on the edge of brannerite aggregates, suggestive of brannerite precipitation occurred before coffinite.

2015年7月20日 · Coffinite, USiO4, is the second most abundant U(4+) mineral on Earth, and its formation by the alteration of the UO2 in spent nuclear fuel in a geologic repository may control the release of radionuclides to the environment. Despite its abundance in nature, the synthesis and characterization of coffinite have eluded researchers for decades.

Coffinite is a mineral that is a widespread source of uranium, forming large quantities in various geological settings. It has a tetragonal structure similar to zircon and can contain rare earth elements and phosphorus.

Coffinite is a mineral with formula of U 4+ (SiO 4)·nH 2 O or U(SiO 4)·nH 2 O. The IMA symbol is Cof.