Measure od moldavite dimension with vernier scale

Measuring of moldavites (dimensions and weight)

Measuring of moldavite dimensions With a moldavite, we measure its length, width and thickness. The measurement is carried out in the thickest part of the moldavite. Measuring instruments – how to measure To measure a moldavite we use a vernier scale with accuracy within 0.01 mm. However we must be careful not to damage the…

Moldavite - Nova Hospoda

Gallery – 50 moldavites from Nova Hospoda

The most frequent shapes of moldavites from locality Nova Hospoda (with Czech diacritics “Nová Hospoda”) are natural fragments. Moldavites from Nova Hospoda have often two kinds of sculptation, sharp edges and spikes. The sculptation (texture of moldavite surface) is relatively often very deep.

Summary of tektites

Ordered by age. Bediasites Georgiaites Urengoy tektites Moldavites Ivorites and microivorites Irghizite and microirghizites Australites Indomalaysianite, Malaysianite Indomalaysianite, Malaysianite Billitonite Philippinite Indochinite Thailandite Bediasite Color: Black non-transparent (brown shine through thin plate). Deposit: North America – about then Texas Counties in an area of over 7,000 square miles (18,000 km2). 1st discovery / description Age…

Noble-gas mass spectrometer for K-Ar dating

Tektites dating – determining the age of moldavites

Potassium–argon dating (K–Ar) method It is suitable as tectites (natural glass) usually contain quite high amount of potassium (including radioactive potassium 40). The amount of potassium is determined by mass spectometer. In the same way the amount of argon 40 can be measured. The date of origin of  natural glass can be calculated from the…