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Bright red faceted ruby in a gold ring, from the large and potentially productive Snezhnoe deposit in Tajikistan.
Rubies and Sapphires from Snezhnoe, Tajikistan

This large marble-hosted occurrence in the Pamir Mountains is a potentially productive source of corundum, including ruby with a bright red color reminiscent of “pigeon’s blood” Burmese rubies.

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Ruby and Sapphire from Jegdalek, Afghanistan
Ruby and Sapphire from Jegdalek, Afghanistan

This study provides detailed mining and gemological information on the Jegdalek deposit, in east-central Afghanistan, which is hosted by elongate beds of corundum-bearing marble.

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Rubies and Fancy-Color Sapphires from Nepal

Gem-quality rubies and fancy-color sapphires have been recovered from dolomite marble lenses located high in the Himalayan mountains of east-central Nepal (Ganesh Himal).

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New Rubies from the Morogoro Area, Tanzania
New Rubies from the Morogoro Area, Tanzania

The authors present the mineralogical and gemological properties of rubies found recently in the Morogoro area of Tanzania that have many features in common with rubies from Myanmar (Burma) and other comparable marble-type deposits.

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Dyed marble imitation of purple sugilite
Dyed Marble as a Purple Sugilite Imitation

Investigation of a purple bangle identified it as a dyed marble imitation of sugilite.

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Dyed green marble imitating jadeite
Dyed Green Marble Imitating Jadeite

What appeared to be high-quality jadeite was actually dyed green marble with calcite as the main mineral.

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Ruby and Sapphire from the Southern Ural Mountains, Russia

Primary occurrences of ruby, pink sapphire, sapphires of other colors, and spinel have been found in marbles in the Ural Mountains.

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Tourmaline and calcite on Burmese ruby.
Tourmaline Crystals on Burmese Ruby

Myanmar’s Kyatpin Valley yields an fascinating gemstone association.

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Ruby cabochon from Prilep, Macedonia.
Macedonian Ruby Specimens

Ruby cabochons from mainland Europe’s only deposit are available on the market.

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Rubies from Mong Hsu
Rubies from Mong Hsu

Large quantities of rubies—both rough and faceted—from a commercially important new source in Myanmar (Burma) have been available on the Bangkok market since 1992.

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