calcite and tiny terminated quartz crystals

Size: 36x26mm

Ruby is the second hardest stone after diamond so few artists have managed to successfully work this mineral since it requires a very advanced technique for carving and polishing

78 kg / 8 lb

Libyan Desert Glass | Natural Impact Glass | 5 Grams | Authentic Impactite Chondrite calcite and tiny terminated quartzThis is a rare and fantastic 5 gram Libyan Desert Glass from Kuffra, Libya, with dimensions of 28x16x13 mm. Although its exact origin is still debated, the leading theory suggests it was formed by a high energy event, such as a meteoric impact or airburst, that melted the desert sand directly where it lay, without being ejected into the atmosphere and re entering. This results in different physical characteristics compared to tektites. Libyan Desert