Nosean, also known as noselite, is a mineral of the feldspathoid group with formula: Na 8 (Al 6 Si 6 O 24)(SO 4)·H 2 O. [1] It forms isometric crystals of variable color: white, grey, blue, green, …

Nosean is an uncommon member of the feldspathoid group that is closely related to Lazurite and Hauyne. It can sometimes be very difficult to distinguish these three minerals without a …

Bright blue nosean is easily mistaken for lazurite. Also classed as a feldspathoid. Visit gemdat.org for gemological information about Nosean. As of 2021 there are now IMA–CNMNC approved …

Nosean. Comments: Stubby crystal of nosean on matrix. Location: Mendig, Laacher See, Rhineland-Pal., Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals

Apr 23, 2023 · Nosean, otherwise called Noselite, is a mineral of the feldspathoid type in tectosilicate with formula: Na8Al6Si6O24 (SO4). H2O. It frames isometric precious stones of …

Nosean is generally restricted to volcanic rocks. The volcanic rocks that the sodalite group is found in include phonolites, alkali basalts, trachyte, and feldspathoidal basalt. The commonly …

nosean, variety of the feldspathoid mineral sodalite (q.v.). This article was most recently revised and updated by John P. Rafferty. Chatbot answers are created from Britannica articles using …

Nosean (Nosean). Nosean, also known as noselite, is a mineral of the feldspathoid group with formula: Na8Al6Si6O24(SO4). H2O. It forms isometric crystals of variable color: white, grey, …

Nosean Na8Al6Si6O24(SO4) ² H2O °c 2001 M i neral D t Publi sh g, v o 1.2 Crystal Data: Cubic. Point Group: 43n: Crystals are dodecahedra, to 2mm; commonly as grains, or massive.

Feb 22, 2022 · Nosean, otherwise called Noselite, is a mineral of the feldspathoid type in tectosilicate with formula: Na8Al6Si6O24 (SO4). H2O. It frames isometric precious stones of …