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.
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.
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).
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.
Dyed Marble as a Purple Sugilite Imitation
Investigation of a purple bangle identified it as a dyed marble imitation of sugilite.
Dyed Green Marble Imitating Jadeite
What appeared to be high-quality jadeite was actually dyed green marble with calcite as the main mineral.
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.
Tourmaline Crystals on Burmese Ruby
Myanmar’s Kyatpin Valley yields an fascinating gemstone association.
Macedonian Ruby Specimens
Ruby cabochons from mainland Europe’s only deposit are available on the market.
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.