Stone profiles, varieties, ornamental materials
An exploration of the extraordinary minerals found in the Earth’s most frigid regions. From Greenland’s rare cryolite to Canada’s diamonds and Russia’s unique Arctic minerals, discover the geology of the north.
Explore the fascinating world of sulfosalts, a complex group of silver-bearing minerals prized by collectors. This guide details their chemical composition, identification, and the challenges of using these rare specimens in jewelry.
Explore the geological anomaly of the Franklin-Wells Mineral District, world-renowned for its unique mineral assemblages. Discover the rare zinc-manganese-iron ores and the exquisite gemstones found in this New Jersey treasure trove.
An authoritative exploration of zinc carbonate minerals, focusing on Smithsonite and Calamine. This guide examines their chemical properties, crystal systems, and significance in the mineralogical world.
An authoritative exploration of the world’s most coveted green gemstones, from the prestigious emerald to the versatile peridot. This guide covers mineralogical properties, identification markers, and the symbolic meanings associated with green stones.
Explore the complex mineralogy of the Plagioclase feldspar series. This guide examines the chemical transition between Albite, Andesine, and Anorthite, and their roles in the gemstone market.
Explore the multifaceted world of Fluorite, from its striking geometric crystals and vibrant colors to its industrial applications. This comprehensive guide covers its gemological properties, value factors, and care requirements.
An in-depth exploration of the olivine group, focusing on the solid-solution series between magnesium-rich forsterite and iron-rich fayalite. Discover the mineralogy, gemological properties, and the significance of peridot.
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.
