Schorl

Schorl (Black Tourmaline) used in Jewelry
Source: Brazil, England (Cornwall), Germany (Saxony), Namibia, Pakistan, USA ...

Schorl: Black Tourmaline.
Scintillation: See Sparkle.
Screw back: A type of earring attachment for non-pierced ears where the earring is tightened against the earlobe by means of a screw with a flat padded end.

Schorl
Black Tourmaline.
Screw Back
A type of earring attachment for non-pierced ears where the earring is tightened against the earlobe by means of a screw with a flat padded end.

* Schorl- dark grey to black, these stones have no gem value, and are used in the crystal form, often as mourning jewelry.

1.) Schorl with Albite, Gilgut, Pakistan
2.) Schorl with Albite, Gilgut, Pakistan
3.) Minas Gerais, Brazil
4.) Minas Gerais, Brazil (closeup)
5.) Pierrepont, New York
6.) Pierrepont, New York
7.) Mexico ...

Spessartite with schorl tourmaline and clevelandite from the Little Three mine at Ramona, San Diego County, California. Photo: Wimon Manorotkul ...

Black Tourmaline (Schorl)
Black tourmaline's particular function is to repel negative energy. This can refer both to external energies or inner emotions, such as anger, resentment, or jealousy.

Black Tourmaline (Schorl)
Manhattan Island Black Tourmaline unique specimens
Himalaya Mine and "Black Tourmaline" ...

Comments Schorl... see tourmaline
Scolecite... hydrated calcium aluminum silicate
Crystallography: monoclinic
Colors: colorless, white
Luster: silky
Hardness: 5 - 5.5
Specific gravity: 2.26 - 2.4
Comments: collector item
Scorodite ...

Tourmaline classification, even to the dedicated mineralogist, represent a confounding array of names (Elbaite, Liddicoatite, Tsilaisite, Dravite, Uvite, Schorl, etc.) that have their basis in slight variations in chemistry and crystalline structure.

These include rubellite (pink to red), indicolite (blue), schorl (black), dravite (brown) and achroite (colorless).
Tourmaline boasts a number of rather amazing physical characteristics.

Hauy discovered some highly vitreous, piezio-electric wedged-shaped crystals that resembled schorl, the dark variety of tourmaline.

A particular esoterical application of black tourmaline (Schorl) is that this stone is very effective in neutralizing tension. It has been used to deflect harmful radiation energy from TV's and computer monitors.

The blue variety is called "Indigolith" and "Schorl" is the name given to black tourmaline. "Achroite" is the colorless variety of Tourmaline. The most popular form of Tourmaline is "Verdelith" or the green variety.

Most of the pegmatite consists of quartz, perthite, graphic granite, and plagioclase in varying proportions, with accessory muscovite, spessartine, elbaite, schorl, beryl, and columbite-tantalite.

Tourmaline"The common black variety called schorl.
Zeolites"Group of low-temperature minerals with many industrial uses.
Zircon"Both a gemstone and a precious source of geologic information.

Mineralogists gave tourmaline a variety of names, such as elbaite, tsilaisite, dravite, chromdravite, liddicoatite, uvite, schorl, achroite, buergerite, feruvite, foitite, povondraite and rubellite.

that turn pink when the light changes are called a pink tourmalines; blue tourmalines are known as indicolites; yellowish brown tourmalines are known as dravites; green tourmalines are known as verdelites; and black tourmalines are known as schorl.

blue, yellow-green, honey-yellow, pale-colored variety is known as elbaite, violet variety is known as siderite, dark blue variety is known as indicolite, brown variety is known as dravite, and the black variety is known as schorl.

Dravite-yellow brown to dark brown; verdelite-green in all shades; Indigolite-blue inall shades; Siberite-lolac to violet blue; schorl-black, very common. Rarely used for jewelry. One color tourmalines are rare. Most crystals have various shades.

There is a large range of varieties of tourmaline including the Achroite, Dravite, Indicolite, Rubellite, Uvite, Tsilaisite, Schorl, Liddicoatite, Elbaite, Sibertite, and Verdelite ...

Gemstone Physical Characteristics: This Tourmaline group includes Rubellite (pink to red), Indicolite (blue), Schorl (black), Dravite (brown) and Achroite (colourless).
Gemstone Colour Variations: Very varied.

Indicolite is a dark blueish black stone. The Paraiba tourmaline is a bright neon-blue and Rubellite is a deep reddish purple stone. Schorl is the name given to black tourmalines which are the most commonly found tourmalines.

In the language of the gemmologists, blue Tourmalines are known as Indigolites, yellowish-brown to dark brown ones as Dravites and black ones as Schorl.

Schorl -- black tourmaline.
Dravite -- brown tourmaline.
Chrome tourmaline -- vivid green. Derives its color from chromium. Appears red when viewed through a Chelsea filter (emerald filter). Fairly scarce and expensive.

Schorl is a very common black and is rarely used in jewelry. Single color tourmalines are rare as most crystals have more than one shade. Watermelon tourmaline is green on the outside and pink on the inside.

See also: Crystal, Tourmaline, Color, Stone, Mineral