Identification of the origin of mineral phases in forensic practice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00007064%3AK01__%2F24%3AN0000085" target="_blank" >RIV/00007064:K01__/24:N0000085 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Identification of the origin of mineral phases in forensic practice

Original language description

příspěvek ve sborníku konference 11th ENFSI APST Working Group Annual Meeting, Riga, Latvia Kotrlý M., Turková I.:Identification of the origin of mineral phases in forensic practice. 11th ENFSI APST Working Group Annual Meeting, Riga, Latvia, p. 11, 2024 In the forensic field we quite often see the requirement to determine the genuineness or origin of the mineral material (minerals as well as rocks). The spectrum of materials is quite broad, e.g. building materials (the equivalent of historical material required by the conservation authorities, cheaper substitutes for cladding materials, etc.), precious stones used in the jewellery industry (directly counterfeit or incorrectly declared gemological objects (precious stones), etc., or the location of origin of the material used in the crime is being searched. In forensic gemology we do not meet only easily identifiable cubic zirconia (ZrO2), moissanite (SiC) or synthetic opals. Problems are e.g. synthetic diamonds, the production of HPHT synthetics is growing rapidly in China, the production of CVD synthetics is also growing strongly. These diamonds are often sold as natural. Their identification is possible, but requires instrumentation and the necessary knowledge. In recent years, a large number of synthetic tektites (vltavín, moldavite) have appeared on the market. Chinese-produced synthetics are capable of faithfully replicating color and typical surface morphology (characteristic surface structure called sculpture), these stones are commonly shipped with false certificates of authenticity. Czech garnet counterfeiting frauds are typical for the Central European area. 'Český granát' is a protected regional designation of origin. Czech garnet is a very popular tourist commodity. Currently a massive amount of other types of garnets are imported from other world deposits, or directly jewellery with these garnets and are sold as the Czech garnet.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

50502 - Criminology, penology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů