Lambobin Herkimer sune maƙallan ma'adini na biyu-Video
Herkimer lu'u-lu'u
tags lu'u-lu'u, Herkimer
An kirkiro lu'u-lu'u Herkimer da ƙuƙwalwar ma'adanai guda biyu waɗanda aka gano a cikin guraben dolostone da ke kusa da kewaye da Herkimer County, New York da kuma Kogin Mohawk. "Lu'u lu'u" a cikin sunansu shine saboda tsabtawarsu da fage na halitta - lu'ulu'u suna da maki biyu na ƙarshe da 18 jimlar fuska, shida a kowane aya, shida a tsakiya. Saboda wuraren da aka gano na farko sun kasance a ƙauyen Middleville da birnin Little Falls, haka nan kuma an san crystal ne da lu'u-lu'u Middleville ko Lu'u-lu'u Little Falls.
An kirkiro lu'u-lu'u na Herkimer da yawa bayan masu aiki sun gano su a cikin adadi mai yawa yayin da suka shiga cikin kogi na Mohawk River a gundumar 18th. Masu binciken ilimin binciken binciken sun gano gine-ginen da aka yi a Herkimer County, suka fara farawa a can, suna jagorantar hakin Herkimer diamond moniker. Ana iya samo lu'ulu'u masu mahimmanci guda biyu a shafuka a duniya, amma kawai wadanda aka yi wa Herkimer County za a iya ba da sunan.
Tarihin ilimin tarihin wadannan lu'ulu'u ya fara game da shekaru 500 da suka wuce a cikin teku mai zurfi wanda ke karbar sutura daga dutsen Adirondack na arewacin arewa. Gishiri da magnesium carbonate sassan da aka tara kuma sunyi lithified don samar da tashar gwanon dolostone fallasa a matsayin Little Falls Dolostone a yau. Yayin da aka binne, an halicci cavist da ruwa mai rufi wanda ya kafa nauyin da aka kirkiro lu'ulu'un quartz. Duk da yake ɗakin ɗakin da ake kira Cambrian yana da shekaru, ana iya fassara ma'adinan a cikin jakar da aka kafa a lokacin Carboniferous Period. Wax Organic Organic, Silicon dioxide da pyrite, iron sulfide, sun kasance a matsayin ƙananan ƙwayoyin dutse da dolomite da lissafi. Kamar yadda sutura ya binne dutsen kuma yanayin zafi ya tashi, lu'ulu'u sun yi girma a cikin cavities sosai sannu-sannu, wanda ya haifar da lu'ulu'u na quartz na kyawawan tsabta. Ana iya samuwa a cikin wadannan lu'ulu'u wadanda suke bada alamomi ga asalin lambobin Herkimer. Samun a cikin inclusions sun zama daskararru, taya, ruwan gishiri ko man fetur, gas, mafi yawancin carbon dioxide, ƙananan abu biyu da uku, da ƙananan lu'u-lu'u marasa kyau. Anthraconite shi ne mafi yawan haɗin kai.
Herkimer diamond, daga Afghanistan
Lu'u lu'u lu'u
tags Champagne, lu'u-lu'u