FEATURED CATEGORIES:

Authentic Megalodon Teeth
Authentic Green River Fish
Dinosaur Eggs
Brain Endocasts

All Classifications:

Ammonites
Amphibians
Birds
Crinoids
Dinosaurs
Ferns
Fish
Hominids & Humans
Ichthyosaurs
Insects
Leaves
Mammals
Misc. Invertebrates
Not Specified
Petrified Wood
Pterosaurs
Reptiles
Sharks
Trilobites

All Categories:

Artifacts
Authentic Fossils
Books
Clearance
Display Stand
Educational
Jewelry
Minerals
Models
Not Specified
Posters
Replicas
Rocks
Toys

Complete Product Catalog

 

Smoky quartz is a brownish grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystal. Like other quartz gems, it is a silicon dioxide crystal.

Color: Black, Brown

Luster: Vitreous

Crystal system: Hexagonal crystal system

Chemical formula: SiO₂₊

Hardness (Mohs hardness scale): 7

Mineral class: Quartz

Transparency: Translucent, Transparent

This specimen is 20 x 16 x 15 inches and about 200 pounds.

The photos show the transparency with an LED light behind the crystals. 

---

Related Items:

MORE PHOTOS:

---

Now Over 1,000 Items!

PrehistoricStore.com offers the largest selection of replica fossils and other fossil-related products anywhere in the world!

Download a Full Catalog (3MB PDF)
OVER 260 PAGES OF REPLICAS AND MORE!

---