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İzahGold nugget (placer gold) 1 (17001285916).jpg
Italiano: Pepita (oro alluvionale)
Français : Pépite d'or (or placer) (12 mm de diamètre au plus large)
English: Gold nugget (placer gold) (12 mm across at the widest). The gold sample shown above is a natural nugget from a placer deposit.
Gold is a metal. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state as minerals. A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. As of the year 2018, there are around 4500 named and described terrestrial minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates. Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium).
Gold is a native element in nature. To find a native element, it must be relatively non-reactive and there must be some concentration process. Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals. Gold is very rare in crustal rocks - it averages about 5 ppb (parts per billion). Where gold has been concentrated, it occurs as wires, dendritic crystals, twisted sheets, octahedral crystals, and variably-shaped nuggets. It most commonly occurs in hydrothermal quartz veins, disseminated in some contact- & hydrothermal-metamorphic rocks, and in placer deposits. Placers are concentrations of heavy minerals in stream gravels or in cracks on bedrock-floored streams. Gold has a high specific gravity (about 19), so it easily accumulates in placer deposits. Its high density allows prospectors to readily collect placer gold by panning.
Gold (Au) is the most prestigious metal known, but it's not the most valuable. Gold is the only metal that has a deep, rich, metallic yellow color.
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/17001285916. It was reviewed on 6 aprel 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.
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Fayl Faylin tarixcesi Istifade edilen sehifeler Faylin qlobal istifadesi MetamelumatlarSinaq gosterisi olcusu 759 599 piksel Diger olculer 304 240 piksel 608 480 piksel 973 768 piksel 1 165 920 piksel Faylin orijinali 8206 1 165 920 piksel fayl hecmi 1 47 MB MIME novu image jpeg Bu fayl Vikimedia Commons dadirve diger layihelerde istifade edile biler Faylin tesvir sehifesine get Xulase IzahGold nugget placer gold 1 17001285916 jpg Italiano Pepita oro alluvionale Francais Pepite d or or placer 12 mm de diametre au plus large English Gold nugget placer gold 12 mm across at the widest The gold sample shown above is a natural nugget from a placer deposit Gold is a metal Metallic semimetallic metalloid and nonmetallic elements are known in their native state as minerals A mineral is a naturally occurring solid inorganic crystalline substance having a fairly definite chemical composition and having fairly definite physical properties At its simplest a mineral is a naturally occurring solid chemical As of the year 2018 there are around 4500 named and described terrestrial minerals about 200 of them are common and about 20 of them are very common Mineral classification is based on anion chemistry Major categories of minerals are elements sulfides oxides halides carbonates sulfates phosphates and silicates Elements are fundamental substances of matter matter that is composed of the same types of atoms At present 118 elements are known four of them are still unnamed Of these 98 occur naturally on Earth hydrogen to californium Gold is a native element in nature To find a native element it must be relatively non reactive and there must be some concentration process Most of these occur in rocks amp minerals although some occur in very small trace amounts Only some elements occur in their native elemental state as minerals Gold is very rare in crustal rocks it averages about 5 ppb parts per billion Where gold has been concentrated it occurs as wires dendritic crystals twisted sheets octahedral crystals and variably shaped nuggets It most commonly occurs in hydrothermal quartz veins disseminated in some contact amp hydrothermal metamorphic rocks and in placer deposits Placers are concentrations of heavy minerals in stream gravels or in cracks on bedrock floored streams Gold has a high specific gravity about 19 so it easily accumulates in placer deposits Its high density allows prospectors to readily collect placer gold by panning Gold Au is the most prestigious metal known but it s not the most valuable Gold is the only metal that has a deep rich metallic yellow color Tarix 4 aprel 2015 02 25Menbe https www flickr com photos jsjgeology 17001285916 James St John flikr Muellif James St John Lisenziya Bu fayl Creative Commons Attribution 2 0 Generic lisenziyasi altinda yayimlanir Azadsiniz paylasmaq eseri kocurmek paylamaq ve oturmek ucun remiks etmek eseri adaptasiya etmek Asagidaki sertlere riayet etmekle istinad Muvafiq kredit vermelisiniz lisenziyaya bir kecid vermelisiniz ve deyisikliklerin olub olmadigini bildirmelisiniz Bunu her hansi bir aglabatan sekilde ede bilersiniz ancaq lisenziyalasdiricinin sizi ve ya istifadenizi tesdiqlemesini teklif eden bir sekilde deyil https creativecommons org licenses by 2 0 CC BY 2 0 Creative Commons Attribution 2 0 true true This image was originally posted to Flickr by jsj1771 at https www flickr com photos 47445767 N05 17001285916 It was reviewed on 6 aprel 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc by 2 0 6 aprel 2015Riferimento Reference www acc esa int European Space Agency 2018CaptionsazerbaycancaAdd a one line explanation of what this file representsingilisGold nugget from a detritic deposit fransizPepite d or issue d un gisement detritique Items portrayed in this filetesvir edirqizilgold nugget ingilisyaradiciSome value without a Vikiverilenler itemURL ingilis https www flickr com people 47445767 N05muellifin qisa adi James St JohnFlickr user ID ingilis 47445767 N05copyright status ingiliscopyrighted ingilislisenziyaCreative Commons Attribution 2 0 Generic ingilissource of file ingilisfile available on the internet ingilisdescribed at URL ingilis https www flickr com photos jsjgeology 17001285916 istifadeci Flickryaranma tarixi4 aprel 2015 Faylin tarixcesi Faylin evvelki versiyasini gormek ucun gun tarix bolmesindeki tarixlere klikleyin Tarix VaxtKicik sekilOlculerIstifadeciSerh indiki20 34 6 aprel 20151 165 920 1 47 MB Jacopo WertherTransferred from Flickr via Flickr2Commons Istifade edilen sehifeler Bu sekile olan kecidler Necib metallar Faylin qlobal istifadesi Bu fayl asagidaki vikilerde istifade olunur bn wiktionary org layihesinde istifadesi স ন br wikipedia org layihesinde istifadesi Aour en wiktionary org layihesinde istifadesi altan mineral tuus স ন Reconstruction Proto Turkic tiaĺ komүs timir Reconstruction Proto Turkic kumuĺ Reconstruction Proto Turkic altun taas Reconstruction Proto Turkic komur Reconstruction Proto Turkic temur Reconstruction Proto Turkic bakir Template table mines trk pro Reconstruction Proto Turkic korguĺcin Template table minerals sah үrүҥ komүs kyһyl komүs miel komor sibinies Template table minerals sla pro fr wikipedia org layihesinde istifadesi Discussion Or Modele Infobox Element Or Or Utilisateur GhosterBot BacASable Le saviez vous Archives Wikipedia Statistiques des anecdotes de la page d accueil Visibilite des anecdotes 2021 Discussion Or LSV 20114 Wikipedia Statistiques des anecdotes de la page d accueil Visibilite des anecdotes 2021 2021 05 Projet Aide et accueil Twitter Tweets archives mai 2021 Wikipedia Le saviez vous Archives 2021 gcr wikipedia org layihesinde istifadesi Lo it wiktionary org layihesinde istifadesi aurum oc wikipedia org layihesinde istifadesi Metau noble pt wikipedia org layihesinde istifadesi Wikipedia Sabia que Propostas Arquivo 2022 07 www wikidata org layihesinde istifadesi Lexeme L722079 zh wiktionary org layihesinde istifadesi altan Reconstruction 原始突厥語 korguĺcin taas Template Table minerals sah Reconstruction 原始突厥語 temur Template Table mines trk pro timir tuusMetamelumatlar Bu faylda fotoaparat ve ya skanerle elave olunmus melumatlar var Eger fayl sonradan redakte olunubsa bezi parametrler bu sekilde gosterilenlerden ferqli ola biler Genislik1 295 pxHundurluk1 028 pxBits per component8 8 8Reng modeliRGBOrientasiyaNormalReng komponentlerinin sayi3Ufuqi xett2 400 dpiSaquli xett2 400 dpiProqram teminatiAdobe Photoshop Elements 13 0 Macintosh Faylin deyismesi tarixi ve vaxti02 25 4 aprel 2015Exif versiyasi2 21Reng sahesisRGBUnique ID of original document9808BE25A53B4821973177025700A53CTarix ve vaxt reqemlesdirilir22 21 3 aprel 2015Date metadata was last modified22 25 3 aprel 2015 Menbe https az wikipedia org wiki Fayl Gold nugget placer gold 1 17001285916 jpg, wikipedia, oxu, kitab, kitabxana, axtar, tap, hersey,
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