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Coated lawsonite pseudomorphs coated to resemble chromian lawsonite

Coated Lawsonite Pseudomorphs Presented as Chromian Lawsonite

Earl O’Bannon and Quentin Williams, January 30, 2015

Samples composed of lawsonite pseudomorphs were coated to make them appear deep green and imitate chromian lawsonite crystals.

New Rubies from the Morogoro Area, Tanzania

H. A. Hänni and K. Schmetzer, September 1, 1991

The authors present the mineralogical and gemmological 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.

Abstracts; Summer 1991

Dona M. Dirlam

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

Abstract Header from the 2009 issue of Gems & Gemology

Abstracts; Summer 2009

Brendan M. Laurs, Thomas W. Overton

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

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