438ct Intense Color Crystal Opal Water Specimen sulfur but this piece is very

but this piece is very fine cutting/carving material that should have a good yield

This is an amazing thumbnail sized dioptase crystal cluster

Measurement: 57mm x 50mm x 44mm

This beautiful mineral specimen will look great in any mineral collection

438ct Intense Color Crystal Opal Water Specimen sulfur but this piece is veryBeautiful non hydrophane crystal opal from Ethiopia! This is a fine specimen of crystal opal and looks amazing in the plastic display dome. It looks stunning in direct sunlight and in direct view of lamp overhead lighting. A great display piece. This particular opal does need to be stored moist to keep it from crazing, so we recommend a clear jar or dome filled with water. They make amazing display specimens, but are not suitable for jewelry. We