Gemstone Encyclopedia

Demantoid Garnet: The Green Wunderkind of Gemology — A Deep Dive into Its Optical Phenomena and Identification

Demantoid Garnet: The Green Wunderkind of Gemol...

Learn to identify demantoid garnet by its dispersion, horsetail inclusions, and refractive index. Expert guide on distinguishing real from fake, price ranges, and care for this rare green gemstone.

Demantoid Garnet: The Green Wunderkind of Gemol...

Learn to identify demantoid garnet by its dispersion, horsetail inclusions, and refractive index. Expert guide on distinguishing real from fake, price ranges, and care for this rare green gemstone.

The Science of Chrysoberyl Cat's Eye: Optical Wonders and Geological Secrets

The Science of Chrysoberyl Cat's Eye: Optical W...

Explore the scientific properties of chrysoberyl cat's eye gemstone, including its crystal structure, Mohs hardness of 8.5, refractive index, geological formation in Sri Lanka and Brazil, and the rutile inclusions...

The Science of Chrysoberyl Cat's Eye: Optical W...

Explore the scientific properties of chrysoberyl cat's eye gemstone, including its crystal structure, Mohs hardness of 8.5, refractive index, geological formation in Sri Lanka and Brazil, and the rutile inclusions...

Lapis Lazuli Buying Guide: Price, Quality & Value Secrets

Lapis Lazuli Buying Guide: Price, Quality & Val...

Comprehensive lapis lazuli buying guide covering grading, price ranges per carat, origin value comparison (Afghan vs. Chilean), treatment detection, certificate tips, and investment insights for natural blue gemstone.

Lapis Lazuli Buying Guide: Price, Quality & Val...

Comprehensive lapis lazuli buying guide covering grading, price ranges per carat, origin value comparison (Afghan vs. Chilean), treatment detection, certificate tips, and investment insights for natural blue gemstone.

Demantoid Garnet vs. Diopside: Expert Visual Identification Guide

Demantoid Garnet vs. Diopside: Expert Visual Id...

Discover how to tell demantoid garnet apart from green diopside using dispersion, horsetail inclusions, refractive index, and other gemological tests. Expert tips for buyers and collectors.

Demantoid Garnet vs. Diopside: Expert Visual Id...

Discover how to tell demantoid garnet apart from green diopside using dispersion, horsetail inclusions, refractive index, and other gemological tests. Expert tips for buyers and collectors.

Labradorite Identification: How to Distinguish Real from Fake and Detect Common Treatments

Labradorite Identification: How to Distinguish ...

Expert guide to labradorite identification: distinguish natural from synthetic, detect coatings, heat treatment, and fracture filling. Includes visual tests, lab techniques, and buying tips for authentic gemstones.

Labradorite Identification: How to Distinguish ...

Expert guide to labradorite identification: distinguish natural from synthetic, detect coatings, heat treatment, and fracture filling. Includes visual tests, lab techniques, and buying tips for authentic gemstones.

Iolite: Complete Guide to Crystal Structure, Identification, and Buying Value

Iolite: Complete Guide to Crystal Structure, Id...

Explore iolite gemstone science including crystal structure, Mohs hardness, and pleochroism. Find identification tips, price ranges, buying advice, care methods, and healing properties in this comprehensive guide.

Iolite: Complete Guide to Crystal Structure, Id...

Explore iolite gemstone science including crystal structure, Mohs hardness, and pleochroism. Find identification tips, price ranges, buying advice, care methods, and healing properties in this comprehensive guide.