Turquoise is an opaque blue to green mineral that is a hydrated phosphate of copper and aluminium with the chemical formula cu al 6 po 4 4 oh 8 4 h 2 o. Bisbee turquoise is famous for its deep blue color and smoky black matrix. With so few of these gems ever found the stone is extremely rare. Stone mountain is a small mine in northern nevada. Turquoise mines in the southwest united states are the most famous such as bisbee lander blue number eight or lone mountain.
Most of the turquoise that come out of lone mountain these days are gray blue or robin s egg blue. Turquoise 40e0d0 web color dark turquoise 00ced1 web color medium turquoise 48d1cc web color pale turquoise afeeee web color blue turquoise 53b0ae. Turquoise may occasionally also be mixed together with green malachite or chrysocolla causing blue and green mottled gemstones. Many turquoise mines throughout nevada produce beautiful shades of green turquoise ranging from lime green to a rich dark green. The mine produces a fine hard gem grade turquoise with colors ranging from a variety of greens to a medium blue.
23 photos turquoise gemstones by colour. Turquoise is opaque sky blue blue green or apple green stone with brown dark gray or black veins of other minerals or the host rock. For other uses see turquoise disambiguation. However other areas in the world produce high quality natural turquoise such as iran tibet china egypt and kazakhstan an early turquoise mine in madan khorasan province iran. It is rare and valuable in finer grades and has been prized as a gemstone and ornamental stone for thousands of years owing to its unique hue.
RELATED ARTICLE :
Most of this turquoise has already been mined so it is a highly collectible variety of turquoise. The most sought after lone mountain turquoise are the dark blue with black spider web matrix. Originally a huge copper mine in arizona this mine produces a royal blue turquoise. Greenish colors are less desirable and are not usually used as gemstones. Some of the more famous mines are the royston blue gem orvil jack carico lake battle mountain pilot mountain and the fox mine.The following are common types of turquoise color. Turquoise is a porous gemstone and is thus easily dyed. Lone mountain turquoise range from clear blue to dark blue spider web. Howardite rain forest pietersite montana agate tahoma jasper charoite opal turquoise laguna carnelian psilomelane owyhee botswana condor dryhead ocean jasper biggs jasper pietersite lapis lazuli. It can also be intergrown with malachite and chrysocolla.
It can also be intergrown with malachite and chrysocolla. The following are common types of turquoise color. Most of this turquoise has already been mined so it is a highly collectible variety of turquoise. 23 photos turquoise gemstones by colour. Most of the turquoise that come out of lone mountain these days are gray blue or robin s egg blue.
Howardite rain forest pietersite montana agate tahoma jasper charoite opal turquoise laguna carnelian psilomelane owyhee botswana condor dryhead ocean jasper biggs jasper pietersite lapis lazuli. Turquoise is an opaque blue to green mineral that is a hydrated phosphate of copper and aluminium with the chemical formula cu al 6 po 4 4 oh 8 4 h 2 o.
