Kufahrite, PtPb, is a new mineral (IMA2020-045) from the Ledyanoy Creek placer, Koryak Highlands, Russia. The mineral was found in isoferroplatinum (Pt3Fe) grains extracted from a heavy-mineral concentrate, together with tetraferroplatinum (PtFe), tulameenite (Pt2FeCu), native iridium, hollingworthite (RhAsS) and Cr-rich spinel. Kufahrite occurs as part of alteration rims which are formed together with tetraferroplatinum after isoferroplatinum, or as grains up to 150 μm in size. According to powder X-ray diffraction analyses kufahrite is isotypic to its synthetic analogue, it is hexagonal and crystallises in space group P63/mmc adopting the nickeline structure type. Its unit-cell parameters are: a = 4.2492(6) Å; c = 5.486(6) Å; V = 85.78 Å3 and Z = 2. The calculated density is 14.80 g/cm–3. The strongest diffraction lines are [d, Å (I, %) (hkl)]: 3.052 (80) (101), 2.197 (100) (102), 2.125 (28) (110), 1.747 (18) (210), 1.528 (35) (202), 1.240 (18) (212) and 0.958 (22) (312). The Vickers hardness is 295 kg/mm2 (range 262–320, n = 5), corresponding to a Mohs hardness of 4. The empirical formula of kufahrite, calculated from a mean value of 23 electron-microprobe analyses is (Pt0.94Rh0.04)Σ0.98(Pb0.83Sb0.19)Σ1.02. The name (pronounced as [ku fa rait]) honours Fahrid Shakirovitch Kutyev (1943‒1993), a geologist from the Institute of Volcanology of USSR Academy of Sciences, who played a key role in the discovery of the Koryak–Kamchatka Platinum Belt, including the Ledyanoy Creek placer platinum deposit, where the new mineral has been discovered.

Kufahrite PtPb是一种新矿物（IMA2020-045），来自俄罗斯Koryak高地的Ledyanoy Creek砂矿。从重矿物精矿中提取的异铁铂（Pt 3 Fe）晶粒中发现了该矿物，还有四铁铂（PtFe），白云石（Pt 2 FeCu ），天然铱，硅钙石（RhAsS）和富铬尖晶石。Kufahrite作为蚀变边缘的一部分出现，该蚀变边缘是在异铁铂后与四铁铂一起形成的，或尺寸最大为150μm的晶粒。根据粉末X射线衍射分析，kufahrite对它的合成类似物是同型的，它是六方晶，在采用镍结构类型的空间群P 6 3 / mmc中结晶。其晶胞参数为：a = 4.2492（6）Å; c = 5.486（6）Å; V = 85.78埃3和Z = 2计算的密度14.80克/厘米-3。最强的衍射线是[ d，Å（I，％）（hkl）]：3.052（80）（101），2.197（100）（102），2.125（28）（110），1.747（18）（210） ，1.528（35）（202），1.240（18）（212）和0.958（22）（312）。维氏硬度为295 kg / mm 2（范围为262–320，n = 5），对应于4的莫氏硬度。根据23个电子探针分析的平均值计算出的kufahrite经验公式为（Pt 0.94 Rh 0.04）Σ0.98（铅0.83锑0.19）Σ1.02。这个名字（发音为[ku fa rait]）是对苏联科学院火山研究所的地质学家Fahrid Shakirovitch Kutyev（1943‒1993）的荣誉，他在发现Koryak–Kamchatka白金带中起了关键作用，包括Ledyanoy Creek砂矿铂金矿床，在那里发现了新的矿物。