Barite with iron-oxide staining and drusy quartz (gossanous vein piece) — mineral Identification & Properties | Geo-Gem
Barite with iron-oxide staining and drusy quartz (gossanous vein piece) is a mineral. 1) Heft test or quick specific gravity by water displacement—barite feels distinctly heavy (SG ~4.5). 2) Knife scratch: barite scratches easily; quartz will not. 3) Acid test: place a drop of cold 10% HCl—barite and quartz are inert; dolom…