Red (sometimes called peach in pale shades) Aventurine has a trigonal crystal system and is in the mineral class of oxide, the Quartz group. It is characterized by its translucence and the small platelets of inclusions that give it a shimmering or glistening effect which is known as ‘aventurescence’.
The deep peach to red varieties are found in Chile, Spain and Russia. Red Aventurine’s peachy, to almost brown sometimes, coloring is attributed to hematite or goethite that was added to the mix during it’s formation period. To newbies in the gem world, this one is sometimes confused with Sunstone. Once you sit them side by side though you can see how different they really are.