Certain mineral specimens containing mercury and arsenic pose significant health risks if mishandled. This guide provides professional protocols for the safe acquisition, storage, and cleaning of toxic gemstones.
An authoritative exploration of Arsenopyrite, a metallic sulfide mineral known for its silver-white luster and arsenic content. This guide covers its chemical properties, identification, and industrial significance.
Explore the geological wonders of Idaho, from the vibrant Star Garnets of the Salmon River to the rare opals of the high desert. This comprehensive guide details the state’s most prized minerals and their gemological properties.
Trichroism is a rare optical phenomenon where a gemstone exhibits three distinct colors when viewed from different crystallographic axes. This advanced form of pleochroism is a vital diagnostic tool for senior gemologists identifying specific mineral species.
While both can appear as striking green stones, actinolite and jade are mineralogically distinct. This guide explores the critical differences in composition, hardness, and structure to help collectors distinguish between them.
A comprehensive gemological guide to the crystals used for balancing the Heart (Anahata) and Throat (Vishuddhi) chakras. Learn the mineral properties and traditional associations of green and blue gemstones.
Discover the captivating world of Tanzanite, a rare variety of zoisite found only in a small area of Tanzania. This guide explores its unique trichroic properties, geological origins, and essential care requirements.
An authoritative exploration of calcium silicate minerals, focusing on rare species sought by collectors. From the vibrant hues of Danburite to the unique properties of Grossular Garnet, this guide details their mineralogy and value.
Explore the fascinating world of nickel-bearing minerals, where nickel replaces other elements to create vivid greens. This guide details the chemistry, identification, and value of rare collector gemstones like Gaspeite and Nickeliferous Garnet.
Explore the diverse world of white and ivory gemstones, from the crystalline brilliance of diamonds to the organic warmth of pearls. This guide covers scientific identification, symbolic meanings, and practical care for these luminous materials.
