11.50ct Ethiopian Opal Mineral Specimen Aragonite Very nice formation of Tourmaline

Very nice formation of Tourmaline in Quartz from Brazil

Most of the photos taken were close to a bright light source and did illuminate these crystals and the camera shows these slightly brighter than it is in normal lighting

but this particular piece has an intense green glow in daylight

but are not suitable for jewelry

11.50ct Ethiopian Opal Mineral Specimen Aragonite Very nice formation of TourmalineWelo Ethiopian hydrophane opal mineral specimen with an amazing play of color. This opal material should NOT be submerged in water or have any oils applied to it ever. Also, due to the hydrophane nature of this opal, the weight can vary slightly with humidity. We consider this to be a Thumbnail (TN) sized specimen. This beautiful mineral specimen is available today! Locality: Welo Ethiopia Measurement: 27mm x 18mm x 6mm Weight: 11. 50ct