~ 190.5 ct Real rare collector natural tektite - moldavite SUPERB GREEN, VERY NICE SHAPE AND TOP QUALITY TEXTURE!!! MUSEUM XXL SIZE + big "Closed gas bubbles!" - 38.1 grams !!! * origin: Czech Repubic - Dobrkovská Lhotka * dimensions: ~ 48 x 44 x 16 mm ! (~ 1.9" inches long - 4.8 cm !) * weight: 190.5 ct (38.1 grams !!!) * Top quality texture, huge size and absolutelly no damage - very hard to get today!!! * really 100% natural, original from Czech - not cheap fake ! * At the request of the buyer, my company will issue a certificate of authenticity with a description and a photo of the specimen! * Very rare with huge gas bubble inside - closed - not open !!! * The bubbles is extra large ~ 9 and 6 mm - and very good visible - top specimen from old collection!!! * Gas pressure in the bubbles is very low, 19 to 25 times lower than the atmospheric pressure at sea level, which implies the formation in a high vacuum environment. Bubbles are partially filled with gases (CO, CO2, H2, N2) * Very small closed bubbles in moldavites are common, but a large and good visible are a great rarity !