1 / 8

Sorosilicates Minerals with isolated [Si 2 O 7 ] 6- groups, but some have both

Sorosilicates Minerals with isolated [Si 2 O 7 ] 6- groups, but some have both [SiO 4 ] 4- and [Si 2 O 7 ] 6- groups. Lawsonite. CaAl 2 Si 2 O 7 (OH) 2 ∙H 2 O. Epidote Group. The group has the general formula X 3 Y 2 (SiO 4 )(Si 2 O 7 )(O,OH) X Y Ca Al,Fe 3+ epidote monocl.

alissa
Download Presentation

Sorosilicates Minerals with isolated [Si 2 O 7 ] 6- groups, but some have both

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sorosilicates Minerals with isolated [Si2O7]6- groups, but some have both [SiO4]4- and [Si2O7]6- groups.

  2. Lawsonite CaAl2Si2O7(OH)2∙H2O

  3. Epidote Group The group has the general formula X3Y2(SiO4)(Si2O7)(O,OH) XY Ca Al,Fe3+ epidote monocl. Ca Al clinozoisite monocl. zoisite orthorh. La,Ce,Y Al, Fe3+ allanite monocl. (allanite is an REE-rich epidote; modern naming follows the convention, e.g. allanite-Y) Ca Al, Fe3+,Mn3+ piemontite monocl.

  4. Epidote

  5. Epidote, Ca2(Al,Fe)Al2O[SiO4][Si2O7](OH) monoclinic, P21/m

  6. ClinozoisiteCa2Al3Si3O12(OH)

  7. Vesuvianite (Idocrase) Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4

More Related