Article Search Results

Show Filters
Showing 2 results for "*"


Articles (2)

Content Type


XClear Selections
Gemstones of Pakistan: Emerald, Ruby and Spinel

This article reports on three gem materials currently being mined in Pakistan.

Read More

Heat Treating Ruby and Sapphire: Technical Aspects

A review of heat treatment methods available for use on natural or synthetic corundum.

Read More