Material: Red Aventurine 13mm Origin: Tanzania Size: Approximately 13mm (±0.5mm) Wrist size: Approximately 17cm (elastic) Weight: Approximately 51g Features/Meaning: This is a rare red aventurine with an orange-red color due to the symbiosis of limonite. It is very beautiful, with no cracks or cloudiness, and a sparkling shimmer can be seen. Inclusions: Goethite (needle iron ore), Lepidocrocite (scale iron ore). Goethite and lepidocrocite are a type of limonite and are polymorphs with the same composition but different crystal structures. Strawberry quartz is a trade name and not a mineral name. When identified, "natural quartz" is the mineral name. Originally, strawberry quartz was called the one that contained goethite from Mexico, and later from Kazakhstan, and showed a sparkling aventurescence. However, strawberry quartz is rarely seen now due to the closure of mines and the end of mining in Mexico and Kazakhstan. Therefore, recently, quartz containing lepidocrocite (goethite) from different origins is called strawberry quartz. Item No.: BG5977-13