◂ BACK TO GEM ENCYCLOPEDIA
Rose Quartz
Rose quartz is a quartz variety that gets its name from its delicate pink color.
See Gem As
Tools
Research
Surfite: A Surfboard Manufacturing Byproduct
Crystal inclusions in a natural diamond resemble a unique scene.
World Events Carved in a Shell
Crystal inclusions in a natural diamond resemble a unique scene.
Pink and Red Epidote in Quartz
“Firework” sprays of hot pink to red epidote crystals are discovered in two rock crystal quartz cabochons.
New Find of Petroleum-Included Quartz from Madagascar
Examination of quartz from a new source in Madagascar reveals complex fluid inclusions consisting of petroleum, methane, asphaltite, and water.
An Update on Sapphires with Unstable Color
Crystal inclusions in a natural diamond resemble a unique scene.
Unusual Purple Fluid in Quartz
Numerous negative crystals in a pear-shaped quartz host brightly colored purple liquid.
Gem Paintings from Thailand
Paintings created from uncut gem fragments are seen at Tucson’s GJX show.
Wheel of Light’s Mesmerizing Optics
A closer look at the Spectrum award-winning pendant from Nature’s Geometry.
Thai-Myanmar Petrified Woods
The properties of petrified woods originating from various localities in Thailand and Myanmar are examined.
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.
