About STS GeoLab

STS GeoLab is a scientific and specialized branch of the knowledge-based company "STS Holding Co." established to revolutionize Iran's mining, gemology, and geology sectors. With cutting-edge laboratory equipment and a distinguished scientific team, we offer world-class services across various domains.

We are one of the few private entity in the country capable of issuing international certificates for gemstones, meteorites, and rare minerals. These globally recognized documents provide detailed structural, chemical, and origin information, serving as essential tools for exporters, jewelry designers, and collectors.

Our Experts

Dr. Adel Shirazy and Dr. Aref Shirazi, two distinguished brothers in the field of Earth Sciences, both hold Postdoctoral degrees in Mining Engineering from Amirkabir University of Technology (Tehran Polytechnic). With over a decade of specialized experience in petrology, gemology, and meteorite science, they are recognized as trusted experts not only in Iran but across the scientific and industrial landscape. Combining deep theoretical knowledge with advanced laboratory skills and a modern approach, they have analyzed hundreds of rock, gem, and meteorite samples with high scientific precision. Their expertise spans from thin-section petrography and gemstone origin analysis to identifying extraterrestrial structures using advanced spectroscopy and microscopy. For the Shirazy brothers, every stone is more than a specimen—it is a cosmic code waiting to be deciphered through the lens of science and art.

Their international experience, broad scientific connections, and deep understanding of industry needs have made GeoLab SefrTaSad a benchmark in the mineral laboratory industry.

Laboratory Services

• Gemology: Authenticity, origin, crystal structure, and color analysis using Raman, FTIR, UV-Vis, and precise refractometry techniques.
• Certification: Issuing international certificates for precious and semi-precious stones and meteorites, aligned with GIA and CIBJO standards.
• Mineralogy: Complete phase and structural analysis with XRD, SEM, EDS, and petrographic thin sections.
• Metallurgy: Metallic element analysis, mechanical testing (hardness, bending, tensile), and rare metal recovery path design.
• Petrology: Comprehensive study of igneous, sedimentary, and metamorphic rocks for construction, mining, and tectonic projects.
• Mineral Identification: Qualitative and quantitative analysis, paragenesis determination, and geochemical provenance studies.
• Geochemical Lab: ICP-MS, XRF, AAS for measuring base metals, heavy metals, toxic and trace elements.
• Meteorite Analysis: Scientific confirmation of extraterrestrial origin, metallic structure analysis, magnetic properties, and shock texture studies.




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Contact Information

SefrTaSad Business Monitoring Company (Knowledge-based)
Tehran Office: Valiasr St., below Zafaraniyeh 3-ways, No. 3015
Alborz Office: Bam Karaj, Vesal Shirazi St., 6th North Laleh – Postal Code: 3149773155
Main Contact: +98-912-187-7608 and +98-912-150-6256
Alborz Office: +98-26-32501894 and +98-26-32504578
SMS Service: 1000400010005
Email: X@STS.IR - SefrTaSad@gmail.com