Tag: chatoyancy

A Writers Guide to Cat’s Eye

Cat’s eye, or cymophane, is a translucent yellowish chrysoberyl that exhibits chatoyancy, a luminous streak of reflected light that’s perpendicular to the direction of the fibers. This is brought about by many parallel, featherlike fluid inclusions or needle-like inclusions of rutile. The most sought after is the milk and honey variety. It’s a honey-colored stone with a milky […]

A Writers Guide to Tiger’s Eye

Tiger’s eye is a golden to reddish-brown colored type of quartz that exhibits chatoyancy, a luminous streak of reflected light that is perpendicular to the direction of the fibers. It has a silky lustre. The gemstone is created when silica is replaced with crocidolite (blue asbestos). The name Tiger’s eye comes from the bands in the […]

A Writers Guide to Quartz

Quartz is the second most abundant mineral. It’s made of a continuous framework of SiO4 silicon–oxygen tetrahedral. Pure quartz is called rock crystal or clear quartz. It is colorless and transparent or translucent. However, there are many varieties of quartz and it comes in most all colors. The biggest distinction between the types involves whether the crystals […]

H.R. Sinclair © 2016
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