From The Gemology Project
A Gallery of Inclusions
Quartz
Gilalite in Quartz
specimen, clear quartz with floating discs of gilalite, often referred to as Medusa Quartz or hyperbolized as "Paraiba Quartz" . Taken with fiber optic light, not dark field.
Specimen of quartz with fibrous gilalite disseminated throughout the entire specimen: Also shot with fiber optic light.
Rutile in Quartz
A blade of brookite which has acted as a nuclei for a dramatic outgrowth of rutile. Also present, coiled ripidolite aggregates
A star of rutile in quartz from Minas Gerais, Brazil
20X magnification
Tourmaline in Quartz
Colorless quartz cab which was purchased in Minas Gerais, Brazil. Crystals are all the same pale blue color when viewed perpendicular to the C axis, but show a dramatic extinction when viewed in the direction of the C axis. Magnification: 10X
typical tourmaline inclusion scene in quartz: black crystals of schorl.
Magnification: 15X