| Rockhounding has become pretty popular in
| |
| | red stone, 256 carate blue/green, a
|
| America. I would call it a safe bet that
| |
| | 75 pound green/pink to name a just a
|
| everyone at least knows a die hard
| |
| | few, have been cut from large tourmaline
|
| rockhound - if they aren't one
| |
| | crystals, and many of the large cut gems
|
| themselves. There is unquestionably
| |
| | are flawless -- and spectacular.
|
| something very special about gems that
| |
| | Cutting gemstones is not the only value
|
| you find yourself. Ever wonder where it
| |
| | of tourmaline, however. It is also used
|
| all started for Us in the USA?
| |
| | to make a polarizing apparatus
|
| In 1820 tourmaline was discovered by
| |
| | (tourmaline tongs), pressure measuring
|
| Elijah Hamilin and Ezekiel Homes at
| |
| | equipment, and specialist microphones.
|
| Mount Mica, Maine. By 1822 America had
| |
| | Scientists can use tourmaline to gain
|
| it's first gemstone mine. It is hard to
| |
| | knowledge of the geological past for the
|
| imagine another gem being so right to
| |
| | area in which the crystals are found.In
|
| represent the avent of America's love of
| |
| | the United States tourmaline can be found
|
| gem hunting.Having a hardness of 7.5,
| |
| | in abundance in southern
|
| tourmaline makes easily workable gem
| |
| | California, Connecticut, Maine, New York
|
| faciting
| |
| | and Texas. It has also been found in
|
| material. It also comes in every color
| |
| | Idaho, South Dakota, North Carolina, and
|
| and hue imaginable. Many crystals
| |
| | a few other states in lesser
|
| contain several colors within one stone,
| |
| | quantities.Worldwide, tourmaline is found
|
| the "watermelon" stone with it's pink
| |
| | in Africa, Brazil, Madagascar, Mexico,
|
| center and green outer layers being the
| |
| | Myanmar,
|
| most well known. Buergerite, elbaite,
| |
| | Namibia, Sri Lanka, and The Isle of
|
| schrol, utive, foitite dravite,
| |
| | Elba.Identifying factors for those
|
| povondravite, chromdravite, feruvite
| |
| | hunting tourmaline are:Color - from
|
| aliddicoatite,
| |
| | transparent to black, often multi-colored
|
| olenite are all mineral species of
| |
| | Luster - vitreous to resinous
|
| tourmaline, making 11 mineral species in
| |
| | Streak - uncolored
|
| all.Tourmaline produces some sizable
| |
| | Cleavage - none
|
| crystals, the usual range falling from
| |
| | Fracture - variable
|
| under
| |
| | Specific Gravity - 3.0 - 3.2
|
| an inch long to over a foot long and
| |
| | Chemistry - SiO2 + B, Al
|
| several inches wide. Needless to say many
| |
| | Crystal System - hexagonal
|
| spectacular huge gems, a 400 carate pink
| |
| | Hardness - 7.0 - 7.
|
