Aventurine (Sun Stone)
| Category |
| Feldspar |
| Crystal Form |
| Triclinic (Microcrystalline) |
| Moh's Scale Hardness |
| 6.0–6.5 |
| Specific Gravity |
| 2.56–2.62 |
| Refractive Index |
| 1.53–1.55 |
| Sources |
| India, Canada, Madagascar, Norway, Russia (Siberia) and United States. |
Aventurine is translucent to opaque gemstone belonging to the microcrystalline quartz group. Aventurine usually has a shimmering red, orange, reddish-orange and more rarely a green or blue in colour. The glittering is caused by the light bounced off from tiny hematite or goethite flakes in the stone. Sometimes the copper-coloured stones will give a metallic luster to the stone.
Inclusions
Tiny hematite or goethite flakes that caused the glittering in the stone and give the stone its distinct characteristic.