Smokey Quartz is a member of the Quartz family and of the trigonal crystal system. It is transparent, translucent and sometimes opaque. It ranges from a very light brown to deep brown color and grey. A black or very dark brown variety of Smokey Quartz is called Morion Quartz. The color is from gamma irradiation and can be natural or artificially irradiated. Smokey Quartz scores a 7 on the Mohs Hardness scale.
Some fun tidbits include:
On May 31, 1985, Smokey Quartz was designated as the “official state gem” of New Hampshire.
Smokey Quartz is the national gem of Scotland.
It's used on kilt pins!
Smokey Quartz was used in the 12th century to make sunglasses in China.
It is said that some of the metaphysical properties of Smokey Quartz may include:
Astrological - Scorpio, Sagittarius, Capricorn
Earth element
Chakras: earth star, root, solar plexus - clears lower chakra blockages
Grounding and cleansing in a gentle manner
Spiritual protection
Positive vibrations
Improved mood
Calming and stress management
Fear reduction and nightmare relief
Check out this ENORMOUS Smokey Cluster
Smokey Quartz with Rutile and a "Baby"/Dolphin
Gorgeous Smokey Palmstone
With Rainbow
Peace/Sleep Well Grid
Clear Quartz, Smokey Quartz, Lepidolite
and Blue Lace Agate
Grounding Grid
Smokey Quartz, Black Kyanite, Hematite, Black Tourmaline, and Clear Quartz
Smokey Quartz is a member of the Quartz family and of the trigonal crystal system. It is transparent, translucent and sometimes opaque. It ranges from a very light brown to deep brown color and grey. A black or very dark brown variety of Smokey Quartz is called Morion Quartz. The color is from gamma irradiation and can be natural or artificially irradiated. Smokey Quartz scores a 7 on the Mohs Hardness scale. 
