frequency
frequency (f) The number of complete
wavelengths which pass a given point in a specified time; units are hertz (Hz; one hertz is one cycle per second). The frequency of a periodic wave-form is given by
f = 1/
T, where
T is the
period; and by
f =
v/λ, where
v is the velocity and λ the wavelength.
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Cerussite.
Magazine article from: Rocks & Minerals; 5/1/1997; ; 700+ words
; ...these minerals is the lead carbonate cerussite. The artificial compound was described...Romans as cerussa. Natural cerussa or cerussite was mentioned in texts that date from...German deposits. Today, outstanding cerussite specimens are displayed in nearly all...
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Dioptase, cerussite and other minerals from the Mammoth-St. Anthony mine, Tiger, Pinal County, Arizona.(Brief article)
Magazine article from: The Mineralogical Record; 5/1/2008; ; 700+ words
; ...supported specimen recovery efforts. The locality is well-known for fine examples of common secondary minerals such as cerussite, dioptase and wulfenite, and also for rarer species such as diaboleite, caledonite, bideauxite and leadhillite which represent...
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1983.(Show Highlights)(Tucson Gem and Mineral Show)
Magazine article from: The Mineralogical Record; 1/1/2004; 700+ words
; ...on display. Because cerussite was the Best of Species...Some great V-twinned cerussites without matrix, from...educational display on cerussite. The Sorbonne had an...Moroccan and Tsumeb cerussites. The Harvard Mineralogical...
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Show highlights: 1983
Magazine article from: Mineralogical Record; 1/1/2004; ; 700+ words
; ...on display. Because cerussite was the Best of Species...Some great V-twinned cerussites without matrix, from...educational display on cerussite. The Sorbonne had an...Moroccan and Tsumeb cerussites. The Harvard Mineralogical...
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Ste-Marie-aux-Mines Show 1995
Magazine article from: Mineralogical Record; 5/1/1996; ; 700+ words
; ...flood of fine anglesite, cerussite and azurite, perhaps not...shaped pale smoke-brown cerussite twin clinging to one side...Grenoble) is a pale yellowish cerussite pseudomorph after anglesite...cupreous solution. The finest cerussites of the new lot are a delicate...
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Ste-Marie-aux-Mines show 1995.
Magazine article from: The Mineralogical Record; 5/1/1996; ; 700+ words
; ...flood of fine anglesite, cerussite and azurite, perhaps not...shaped pale smoke-brown cerussite twin clinging to one side...Grenoble) is a pale yellowish cerussite pseudomorph after anglesite...cupreous solution. The finest cerussites of the new lot are a delicate...
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NEVADA MINERAL LOCALITY INDEX.
Magazine article from: Rocks & Minerals; 11/1/1999; ; 700+ words
; ...District Chalk Mountain mine: calcite, cerussite, chlorargyrite, descloizite, galena...prospects: anglesite, aurichalcite, cerussite, conichalcite, heterogenite, hyrdrozincite...cuprian) Yellow Pine mine: aurichalcite, cerussite, hemimorphite, heterogenite, hydrozincite...
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Pyromorphite.
Magazine article from: Rocks & Minerals; 5/1/2001; ; 700+ words
; ...Pseudomorphs of pyromorphite after galena and cerussite are reported, as are those of apatite...mineral. Associated species can include cerussite, smithsonite, hemimorphite, anglesite...of old lead mines at Middletown, with cerussite and wulfenite as a trace mineral in pegmatites...
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Collecting microminerals in Leadville, Lake County, Colorado.(Through the Scope)
Magazine article from: Rocks & Minerals; 9/1/2006; ; 700+ words
; ...microscope, a few colorless to white, bladed cerussite crystals were also found with the smithsonite...Shannon and Shannon (1985) report cerussite from the Black Cloud mine, but it is...azurite (dark blue crystals with cerussite), barite (large golden crystals...
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Investigators at University of Washington release new data on science and technology.(Report)
Newspaper article from: Ecology, Environment & Conservation; 6/19/2009; 660 words
; ...and lead (II) (hydrocerussite, cerussite) and during the oxidation of the lead...contrast with that, lead release from cerussite undergoes a transient increase during...patterns of morphological changes of the cerussite and hydrocerussite crystal surfaces...
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cerussite
Book article from: The Columbia Encyclopedia, Sixth Edition
cerussite , colorless to white or gray mineral, sometimes yellowish or greenish, transparent to opaque, very brittle, crystallizing in...
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Lead
Book article from: World of Earth Science
...is found most commonly as a compound in the form of galena (lead sulfide; PbS), anglesite (lead sulfate; PbSO 4 ), cerussite (lead carbonate; PbCO 3 ), and mimetite. Geochemically, lead is a moderately active metal that dissolves very slowly...
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wulfenite
Book article from: A Dictionary of Earth Sciences
...granular, or botryoidal ; cleavage good {101}; sub- conchoidal fracture ; occurs as a secondary mineral in the oxidized zones of ore minerals of lead and molybdenum, and in association with anglesite , cerussite , and pyromorphite .
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lead
Book article from: The Columbia Encyclopedia, Sixth Edition
...found uncombined in nature, its compounds are widely distributed throughout the world, principally in the ores galena , cerussite , and anglesite . Australia, the United States, Canada, and Russia are among the chief producers of lead. In the United...
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Adamantine
Book article from: World of Earth Science
...include the gemstones ruby and sapphire, has a hardness of nine on the Moh's scale and a vitreous to adamantine luster. The lead carbonate mineral, cerussite, and lead sulfate mineral, anglesite, also have adamantine lusters. See also
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