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Plumosite
Plumosite is a questionable mineral. Most of the time, it can refer to any feather ore, i.e. any ore that forms fine capillaries within the surrounding rock. Older specimens could be either boulangerite, jamesonite or zinkenite Zinkenite is a steel-gray metallic sulfosalt mineral composed of lead antimony sulfide Pb9 Sb22 S42. Zinkenite occurs as acicular needle-like crystals. It was first described in 1826 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germa ... (Pb2Sb2S5, sulfosalt mineral). References Mineralogy {{Mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulangerite
Boulangerite is an uncommon monoclinic orthorhombic sulfosalt mineral, lead antimony sulfide, formula Pb5Sb4S11. It was named in 1837 in honor of French mining engineer Charles Boulanger (1810–1849),http://www.mindat.org/min-738.html Mindat and had been a valid species since pre- IMA. It was first described prior to 1959, and is now grandfathered.http://webmineral.com/data/Boulangerite.shtml Webmineral data Properties Boulangerite was considered to be a really rare mineral until later they found numerous ore deposits of said mineral. Nowadays it is considered as an uncommon mineral, which is rather cheap, with a color of light blue to black to grey. The dust of the mineral is black. Pseudohexagonal shape is common for this mineral. It forms rings rarely. It is the homeotype of lopatkaite. The strong subcell is orthorhombic, and has a halved c. It forms small, elongated prismic or fine, needle-like crystals. Each crystal can grow up to a few centimeters, and crystals can only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamesonite
Jamesonite is a sulfosalt mineral, a lead, iron, antimony sulfide with formula Pb4FeSb6S14. With the addition of manganese it forms a series with benavidesite.http://rruff.geo.arizona.edu/doclib/hom/jamesonite.pdf Handbook of Mineralogy It is a dark grey metallic mineral which forms acicular prismatic monoclinic crystals. It is soft with a Mohs hardness of 2.5 and has a specific gravity of 5.5 - 5.6. It is one of the few sulfide minerals to form fibrous or needle like crystals. It can also form large prismatic crystals similar to stibnite with which it can be associated. It is usually found in low to moderate temperature hydrothermal deposits. It was named for Scottish mineralogist Robert Jameson (1774–1854). It was first identified in 1825 in Cornwall, England. It is also reported from South Dakota and Arkansas, US; Zacatecas, Mexico; and Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinkenite
Zinkenite is a steel-gray metallic sulfosalt mineral composed of lead antimony sulfide Pb9 Sb22 S42. Zinkenite occurs as acicular needle-like crystals. It was first described in 1826 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany and named after its discoverer, German mineralogist and mining geologist, Johann Karl Ludwig Zinken Johann, typically a male given name, is the German form of ''Iohannes'', which is the Latin form of the Greek name ''Iōánnēs'' (), itself derived from Hebrew name '' Yochanan'' () in turn from its extended form (), meaning "Yahweh is Gracious ... (1790–1862).http://www.mindat.org/min-4417.html Mindat References Lead minerals Antimony minerals Sulfosalt minerals Hexagonal minerals Minerals in space group 173 {{sulfide-mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |