Fire Hematoid Quartz Heart Fire QuartzIron Oxide In Quartz This is a gorgeous mineral specimen. You can see all the layers that make up this crystal. This Hematoid Quartz heart is also known as Fire Hematoid Quartz. It is burgundy, a deep red, and transparent. Hematoid Quartz is also known as Fire Quartz, specularite quartz, and ferruginous quartz. The red color inside the type of quartz is due to Iron Oxide. Red Hematoid Quartz can be found in the United States, Brazil, Madagascar, and