It is the quartz which are brownish in color, with a smoky appearance.
Smoky Quartz is a variety of the Quartz family. It exhibits brown to black and smoky gray colors. On Mohs’ scale of hardness, smoky quartz is 7. Sources include Brazil, Madagascar, Russia, Scotland, Switzerland and the Ukraine. (See Smoky Quartz Facts.) (Note: Sources listed in order of primary and secondary deposits.)
a smoky yellow or brown quartz
Believe it or not is a Quartz that has a smoky look to it
Brownish color quartz with a smoky appearance.
Quartz that is brownish in color, with a smoky appearance.
a variety of natural quartz crystal, this gemstone is known for its unusual black-brown color.
Brownish colored quartz with a smoky appearance.
(1837) A form of quartz in colours including transparent light grey, brown, dark brown and black, smoky quartz occurs in massive or crystal form. Dark smoky or black quartz can be created by the irradiation of ordinary rock crystal.
A variety of quartz that ranges in color from cloudy brown to a dark root beer shade with a smoky appearance.
Smoky quartz is a type of brownish quartz that has a smoky look.
Quartz that's brownish in color with a smoky appearance.
Smoky quartz or Smokey quartz, also known as Cairngorm or Cairngormstone is a brown variety of quartz caused through the natural (or artificial) irradiation of aluminium-containing rock crystal. A very dark brown to black opaque variety is known as morion.
