Moldavite Lab Created Loose Gemstones

Description

I purchased these stones believing the stones were from the Czech Republic.  I was inexperienced and later found they were lab created.  Now i can pick out a lab created stone right away.  If there are no gas bubbles in the moldavite, they are fake and not from the Czech Republic.  I just want to sell all of these lab stones.  This ad is for all of the lab created stones as one unit.
Like all tektites, moldavites can vary in chemistry and have a wide range ofrefractive index(RI) andspecific gravity(SG) values. Testing for X-rayfluorescenceand searching for inclusions are the best ways to start identifying these gems. Moldavites typically have a wavy, roiled heat wave appearance, likehessonites. They also contain numerous inclusions of gas bubbles, swirls (flow marks), and grains or long wires oflechatelierite(amorphous silica glass). Finding lechatelierite inclusions is a strong indication you have a moldavite. Sincethese inclusions have a lower RIthan the host moldavite, they will appear in highreliefif you view a gem through aloupeor immersed in arefraction liquidwith an RI that matches the gem. Sometimes, distinguishing moldavite frommanufactured glassmay requireadvanced gemological lab equipment. For example, a Laser Ablation-Inductively Coupled Plasma-Mass Spectrometer (LA-ICP-MS) can identify a gems chemical composition. This instrument may help distinguish moldavites from soda-lime green manufactured glasses, which can havehigh NaO and CaO content. Fourier Transform Infra-Red (FTIR) spectrometry can analyze the infrared electromagnetic spectrum. When viewed with this instrument, moldavites showan asymmetrical absorption peakat 3700 cm-1. How Can You Spot a Fake Moldavite? Before moldavites were recognized as a type of natural glass,it was believed they were just slagfrom the Bohemian glass-making industry. Distinguishing moldavites from synthetic glass remains difficult. Jaroslav Hyrls 2015 article,Moldavites: Natural Or Fake?, contains a great deal of useful information for separating genuine moldavites not only from contemporary Chinese imitations but also 19th century imitations. Beware of any material sold as African moldavite. Africa does yield tektites, such asLibyan desert glassandivoritefrom Ivory Coast. However, by definition, moldavites occur only in the strewn field around the Nrdlinger Ries impact. Libyan desert glass can have a pale yellowish green color, while moldavites tend to have a darker green color. Ivorites only occur in black.Most likely, so-called African moldavites arent tektites at all but actually manufactured glass pieces sold under a misleading name. They tend to look clearer than actual moldavites, with fewer inclusions. The main source of moldavites is theCzech Republic. Other sources include the following:Austria,Germany, andPoland.