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Jasi

Kutoka Wikipedia, kamusi elezo huru
Jasi

Jasi (ing.gypsum) ni madini yanayoptikana mahali pengi ambayo kikemia nisulfati ya kalsi .Fomula yake ni CaSO4·2H2O. Ni madini laini sana yakiwa na ugumu wa 2 kwenyeskeli ya Mohs. Inaweza kukwaruzwa kwakucha.

Kiasili inapatikana mara nyingi kama fuwele; jasi safi haina rangi lakini ikichanganywa na madini mengine kuna fuwele za rangi kadhaa. Kwa matumizi ya kibinadamu huchomwa ikipatikana baadaye kama unga nyeupe. Unga wa jasi unaweza kuchanganywa na maji ukipokea umbo lolote baada ya kukauka tena.

Jasi imetumiwa tangu kale katika ujenzi, hasa kwenyelipu. Katika ujenzi wa kisasa bao za jasi na matofali ya jasi hutumiwa kujenga kuta za ndani zisizobeba mzigo. Kuta hizi za jasi huzuia au kuchelewesha moto ndani ya nyumba[1]. Hutumiwa pia kama dawa la kilimo na chalki ya ubao shuleni. Wasanii hutumia jasi kwa sanamu.

Picha

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  • Maumbo tofauti ya jasi asilia
  • Fuwele za jasi kutoka Australia - rangi inatokana na ioni za shaba.
    Fuwele za jasi kutokaAustralia - rangi inatokana na ioni zashaba.
  • Unusual selenite gypsum from the Red River, Winnipeg, Manitoba, Canada
    Unusual selenite gypsum from theRed River, Winnipeg, Manitoba, Canada
  • Classic "ram's horn" gypsum from Santa Eulalia, Chihuahua, Mexico, 7.5×4.3×3.8 cm
    Classic "ram's horn" gypsum fromSanta Eulalia, Chihuahua, Mexico, 7.5×4.3×3.8 cm
  • Desert rose, 47 cm long
    Desert rose, 47 cm long
  • Gypsum from Pernatty Lagoon, Mt Gunson, Stuart Shelf area, Andamooka Ranges - Lake Torrens area, South Australia, Australia
    Gypsum from Pernatty Lagoon, Mt Gunson, Stuart Shelf area, Andamooka Ranges - Lake Torrens area, South Australia, Australia
  • Gypsum with crystalline native copper inside
    Gypsum with crystallinenative copper inside
  • Gypsum from Swan Hill, Victoria, Australia. The colouring is due to the copper oxide
    Gypsum from Swan Hill, Victoria, Australia. The colouring is due to the copper oxide
  • Waterclear twined crystal of the form known as "Roman sword". Fuentes de Ebro, Zaragoza (Spain)
    Waterclear twined crystal of the form known as "Roman sword". Fuentes de Ebro, Zaragoza (Spain)
  • Bright, cherry-red gypsum crystals 2.5 cm in height colored by rich inclusions of the rare mineral botryogen
    Bright, cherry-red gypsum crystals 2.5 cm in height colored by rich inclusions of the rare mineralbotryogen
  • Gypsum from Naica, Mun. de Saucillo, Chihuahua, Mexico
    Gypsum from Naica, Mun. de Saucillo, Chihuahua, Mexico
  • Golden color gem, "fishtail"-twinned crystals of gypsum sitting atop a "ball" of gypsum which is composed of several single bladed crystals
    Golden color gem, "fishtail"-twinned crystals of gypsum sitting atop a "ball" of gypsum which is composed of several single bladed crystals

Marejeo

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  1. https://www.usgs.gov/centers/nmic/gypsum-statistics-and-information, tovuti ya National Minerals Information Center, Marekani

Viungo vya Nje

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WikiMedia Commons
WikiMedia Commons
Wikimedia Commons ina media kuhusu:
Makala hii kuhusu mambo yakemia bado nimbegu.
Je, unajua kitu kuhusuJasi kama historia yake au mahusiano yake na mada nyingine?
Labda unaona habari katika Wikipedia ya Kiingereza au lugha nyingine zinazofaa kutafsiriwa?
Basi unaweza kuisaidia Wikipedia kwakuihariri na kuongeza habari.
Rudishwa kutoka "https://sw.wikipedia.org/w/index.php?title=Jasi&oldid=1194245"
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