Characterization of Inclusions in Geuda and Introduction of New Heat Treatment Methods to the Industry In the geuda industry, selecting the right geuda that will produce high-quality sapphires is a challenging task. Many gem traders struggle due to a lack of knowledge about identifying geuda with the best potential for heat treatment. One major issue…
Value Addition of Low-Quality Gem Materials Through Gamma Irradiation and Commercialization Sri Lankan gem mines produce a variety of gemstones, but many of them are of low quality and have limited market value. While traditional treatment methods are commonly used to improve gem quality, they are not always effective for certain low-quality materials. This research…
GIS-Based 3D modeling for Characterization of a Secondary Gem-bearing profile: A Case Study in Kelani River Basin Accurately estimating deposit thickness and characterizing sedimentary layers in secondary gem deposits in Sri Lanka, is crucial for optimizing resource utilization and minimizing environmental impact. Traditional methods, including manual surveys and surface mapping, often lack the spatial resolution…
Increasing Gem extraction in Sri Lanka Sri Lanka’s gemstone export industry has experienced notable growth in recent years. The annual income generated from gemstone exports between 2019 and 2024 was US$321 million and US$312 million (up to July 2024), respectively. Projections to reach $500 million by year-end show a slight increase in export revenue. Looking…
