Green MOLDAVITE TEKTITE METEORITE LARGE rough 24 ct NR

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Green MOLDAVITE TEKTITE METEORITE LARGE rough 24 ct NR Size of the piece is approx. 25x18x11 mm Weight 5 gram /25 ct Moldavite is an olive-green or dull greenish vitreous substance formed by a meteorite impact. It is one kind of tektite. It was named by A. Dufrnoy from Moldauthein in Bohemia, w it occurs. It is sometimes cut and polished as an ornamental stone under the name of pseudo-chrysolite . Its bottle glass color led to its being commonly called Boute-illenstein , and at one time it was regarded as an artificial product, but this view is opposed to the fact that no remains of glassworks are found in the neighborhood of its occurrence, moreover pieces of the substance are widely distributed in Tertiary and early Pleistocene deposits in Bohemia and Moravia. For a long time it was generally believed to be a variety of obsidian, but its difficult fusibility and its chemical composition are rather against its volcanic origin. Dr. F.E. Suess pointed out that the nodules or small masses of moldavite presented curious pittings and wrinkles on the surface, which could not be due to the action of water, but resembled the characteristic markings on many meteorites. Boldly attributing the material to a cosmic origin, he regarded moldavite as a special type of meteorite for which he proposed the name of tectite. To this type are also read more