Article Search Results

Show Filters
Showing 16 results for "*"
Assortment of Linde synthetic star rubies and sapphires
Dual-Color Double Stars in Ruby, Sapphire, and Quartz: Cause and Historical Account

Examines a form of asterism comprising two six-rayed stars, one white and one that exhibits the stone’s bodycolor. Firsthand accounts and a survey of patent documents reveal that diffusion has been used to create or enhance this optical phenomenon in synthetic and possibly natural corundum since the 1950s.

Read More

Article
GIA Gem Project
Various Gems (Olivine - Rutile)

Among the collection assembled by Dr. Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

Read More

Wanlaya Suwannapirom with painted pendant.
Gem Paintings from Thailand

Paintings created from uncut gem fragments are seen at Tucson’s GJX show.

Read More

Wheel of Light Numinous pendant
Wheel of Light’s Mesmerizing Optics

A closer look at the Spectrum award-winning pendant from Nature’s Geometry.

Read More

Petrified wood carvings and cabochons.
Thai-Myanmar Petrified Woods

The properties of petrified woods originating from various localities in Thailand and Myanmar are examined.

Read More

Synthetic quartz crystal with inclusion suite of almandine and pyrope.
Synthetic Quartz: A Designer Inclusion Specimen

A collectable inclusion specimen is created by introducing garnets to synthetic quartz during the growth process.

Read More

South African rhodochrosite specimen and Colombian quartz slices showing trapiche-like patterns.
African Rhodochrosite and Colombian Quartz with Trapiche Patterns

An eclectic grouping of gems and minerals at Tucson’s Pueblo show includes South African and Colombian specimens.

Read More

2016 GJX show at Tucson
Tucson 2016

An overview of the 2016 gem shows.

Read More

An Interesting Rose Quartz from Madagascar

A new find of rose quartz from Madagascar contained some unusual inclusions.

Read More

Bismuthinite Inclusions in Rose Quartz from Madagascar

Eye-visible inclusions are common in almost all quartz varieties except rose quartz.

Read More