Tags: Chemical Substance, Mineral.

The mineral heliotrope also known as bloodstone is a form of chalcedony (which is a cryptocrystalline mixture of quartz and its monoclinic polymorph moganite). The classic bloodstone is green chalcedony with red inclusions of iron oxide or red jasper. Sometimes the inclusions are yellow in which case the mineral is given the name plasma. The red inclusions are supposed to resemble spots of blood; hence the name bloodstone.

Quarz_-_Heliotrop_(Blutjaspis).JPG

Loading...

This page contains content from the copyrighted Wikipedia article "Heliotrope (mineral)"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.