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Ruby

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.

Ruby
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Research

Sea Urchin–Like 3D Radial Fissures in a Heated Mong Hsu Ruby

Examination of a 1.34 ct ruby reveals a unique inclusion formed during heat treatment.

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Rubies from the Niassa and Cabo Delgado Regions of Northern Mozambique

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Abstracts; Fall 1991

This article, from the Fall 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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Abstracts; Winter 1991

This article, from the Winter 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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Ruby Description

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Ruby Care and Cleaning Guide

Learn about ruby's durability and how to care for your ruby jewelry.

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Ruby Quality Factors

Ruby can command the highest prices of any colored gemstone. The per-carat prices of fine-quality rubies have been rising consistently, many times breaking auction records. Click here and learn about the factors that make ruby so desirable!

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Ruby History and Lore

The name ruby comes from the Latin word ruber, which means “red.” The glowing red of ruby suggested an inextinguishable flame burning in the stone...

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Ruby Journey

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire

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Suggested Reading on Rubies and Their Inclusions

Suggested Reading on Rubies and Their Inclusions

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Corundum with Spinel Corona from the Tan Huong–Truc Lau Area in Northern Vietnam

Explains the reactions responsible for the formation of a well-developed reaction rim of spinel that surrounds the corundum core in some specimens from this deposit.

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Winter 2012 Gem News International

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