Minerals identify

Know how to recognize them

Phenakite

Nesosilicate

Phenakite or phenacite is a fairly rare nesosilicate mineral orthosilicate 2Si, phenakite occurs as isolated crystals , which are rhombohedral with parallel-faced hemihedrism, and are either lenticular or prismatic in habit: the lenticular habit is determined by the development of faces of several obtuse rhombohedra and the absence of prism faces. There is no cleavage. The Mohs hardness is high, being 7.5 – 8; the specific gravity is 2.96. The crystals are sometimes perfectly colorless and transparent, but more often they are greyish or yellowish and only translucent; occasionally they are pale rose-red. In general appearance the mineral is not unlike quartz , for which indeed it has been mistaken. Its name comes from Ancient Greek : φέναξ, romanized : phénax, meaning "deceiver" due to its close visual similarity to quartz, named by Nils Gustaf Nordenskiöld

Identification

Color of mineral

Yellow
Pink
Brown

Mohs scale ( mineral hardness )

7.5

Density ( specific gravity )

1.65
1.667

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Trigonal