as it can produce sparks when struck against metal or another hard material

Amethyst can be found in various locations around the world

a variety of impactites may remain

and is often found in metamorphic and igneous rocks

and moon rock

Star Sapphire | Oval Cabochon | Blue | 7.0x6.5mm 2.0ct | Myanmar Gold Basin as it can produce sparksProduct Type: Star Sapphire Approx Weight (per piece): 2. 0ct Size: 7. 0x6. 5mm Shape: Oval Cabochon Color: Fine Pale Blue Clarity: Transparent Sharp 6 Rays Star Origin: Myanmar (Burma) Treatment: None Note: Internal fracture not impacting on amazing sharp Star. Cabochon base is slightly irregular. Priced accordingly