Gips

gips
Gips
Općenito
Kategorijasulfatni minerali
Hemijska formulaCaSO4·2H2O
Identifikacija
Kristalni habitusmasivan, prizmatičan
Kristalni sistemmonoklinski
Tvrdoća2
Sjajstaklast do svilenkast, voštan
Ogrebbijel
Gustoća2,31 - 2,33
Rastvorljivostu vrućoj razblaženoj HCl

Gips[1] je mineral koji se na Mohsovoj skali nalazi pod brojem 2,[2] što znači da je na toj skali drugi najmekši mineral, odmah poslije talka. Hemijska formula mu je CaSO4·2H2O. Fino usitnjeni gips se naziva alabaster, koji je cijenjen za izradu ukrasnih predmeta. Nekada se pojavljuje u obliku sličnom cvijetu, sa uklopljenim zrncima pijeska i naziva se pustinjska ruža.

Sitnozrnati bijeli ili blago nijansirani oblici gipsa poznati kao alabaster korišteni su za skulpture u mnogim kulturama,[3] uključujući Stari Egipat, Mezopotamiju, Stari Rim, Bizantsko Carstvo i alabastere iz Nottinghama iz srednjovjekovne Engleske.


Reference

  1. ^ "Gypsum". www.mindat.org. Pristupljeno 18. 3. 2026.
  2. ^ "Mohs Scale of Hardness". www.minsocam.org. Pristupljeno 18. 3. 2026.
  3. ^ "Ancient Arabia: archaeology & history of pre-islamic Arabia". ancientarabia.huma-num.fr (jezik: engleski). Pristupljeno 18. 3. 2026.

Vanjski linkovi

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