A Kind of Inner Opalescence
by Elizabeth McTaggart
Title
A Kind of Inner Opalescence
Artist
Elizabeth McTaggart
Medium
Digital Art - Fractal Art And Digital Collage
Description
A Kind of Inner Opalescence
Lustre (or luster) is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the latin lux, meaning "light", and generally implies radiance, gloss, or brilliance.
A range of terms are used to describe lustre, such as earthy, metallic, greasy, and silky. Similarly, the term vitreous (derived from the Latin for glass, vitrum) refers to a glassy lustre.
Lustre varies over a wide continuum, and so there are no rigid boundaries between the different types of lustre. (For this reason, different sources can often describe the same mineral differently. This ambiguity is further complicated by lustre's ability to vary widely within a particular mineral species.) The terms are frequently combined to describe intermediate types of lustre (for example, a "vitreous greasy" lustre).
Some minerals exhibit unusual optical phenomena, such as asterism (the display of a star-shaped luminous area) or chatoyancy (the display of luminous bands, which appear to move as the specimen is rotated).
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Featured:
Digital works
01/08/2016
Surreal Geometry
05/24/2014
The Artist News
05/23/2014
3 A Day Waiting Room Art
05/20/2014
Visual Voice
05/19/2014
Digital Art and Fabulous Fractals
05/19/2014
Uploaded
May 18th, 2014
Statistics
Viewed 3,859 Times - Last Visitor from Fairfield, CT on 04/16/2024 at 4:00 PM
Embed
Share
Sales Sheet
