Ilvaite
id:
ilvaite-274-3683991
title:
Ilvaite
text:
Ilvaite is a sorosilicate of iron and calcium with formula: CaFe2+2Fe3+Si2O7O(OH). Both manganese and magnesium substitute in the structure. Ilvaite crystallizes in the monoclinic system in black prismatic crystals and columnar masses. It is black to brownish black to gray and opaque. It has a Mohs hardness of 5.5 to 6 and a specific gravity of 3.8 to 4.1. Ilvaite is structurally related to lawsonite. It occurs in contact metamorphic rocks and skarn ore deposits. It also occurs less commonly in
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Ilvaite
date created:
date modified:
2024-01-23T05:49:33Z
main entity:
{"identifier":"Q422122","url":"https://www.wikidata.org/entity/Q422122"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/c/cc/Ilvaite-es111c.jpg","width":400,"height":292}
fields total:
13
integrity:
14