ClassicGems.net
Gem and Mineral Information
Gem and Mineral Information:
Anniversary Gifts Anisotropic Gems Birefringence Birthstones Chemistry Clarity Cleavage Color Country of Origin Crystal Habit (shapes) Crystallography Density Diamagnetic Gems Dimorphism Dispersion Enhancements Fluorescent Gems Fracture
Hardness Luminescence Luster Magnetic Gems Metallic Gems Metamict Gems Mineral Classifications Mineral Groups Optical Illusion Paramagnetic Gems Periodic Table Photochromic Gems Piezoelectric Gems Pleochroism Poisonous Gems Polymorphism Pseudomorph Pyroelectric Gems
Radioactive Gems Rare Earth Elements (REE) Gems Refractive Index Shapes of Gemstones Specific Gravity (Density) Strunz Classifications Tenacity (toughness) Tenebrescent Gems Transparency Triboluminescent Gems Trimorphism Twinning Unit Conversion (mm) Unusual Gem Categories USA Gemstones US State Gemstones Water Soluble Gems Zodiac Gemstones