Pargasite

Pargasite has a green to black colour and is named after the town of Pargas in Finland, where it was first discovered.

It is sometimes used as a gemstone but is also often collected as a mineral specimen.

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Appearance


Uses and History


Key Locales

Africa

Tanzania

  • Mundarara Mine, Longido District, Arusha Region, Tanzania

Asia

Afghanistan

  • Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan

Pakistan

  • Aliabad, Nagar District, Gilgit-Baltistan, Pakistan

Vietnam

  • An Phú, Lục Yên District, Yên Bái Province, Vietnam

Europe

Finland

  • Ersby, Pargas, Finland
  • Limberg quarry, Pargas, Finland
  • Skräbböle Quarry (Nordkalk Quarry), Pargas, Finland

France

  • Peygerolles, Saint-Privat-du-Dragon, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
  • Loire river alluvial deposits, Gien, Montargis, Loiret, Centre-Val de Loire, France
  • Granulite outcrops, Etang de Lers, Col d’Agnès, Le Port, Saint-Girons, Ariège, Occitanie, France

Germany

  • Bellerberg volcano, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
  • Dreiser Weiher, Eifel Volcanic Fields, Germany
  • Loitsch Quarry, Weida, Greiz District, Thuringia, Germany

Italy

  • Punta Sirenella, Olbia, Sassari Province, Sardinia, Italy
  • San Vito Quarry, San Vito, Ercolano, Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy
  • Mount Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy

South America

Antarctica

Australia and Oceania

North America

United States of America

  • Franklin, Sussex County, New Jersey, USA
  • Amherst, Hillsborough County, New Hampshire, USA
  • Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
  • Jayville mine, Magnetite Mining District, St. Lawrence County, New York, USA

Mineralogy

 

Chemistry
Inosilicate amphibole with the formula NaCa2(Mg4Al)(Si6Al2)O22(OH)2.
Colours and Variations
Streak
Luster
Vitreous
Fracture
Splintery
Crystal habit
Mohs hardness
5-6
Specific Gravity
3.04 – 3.17
Easiest testing method

Hazards and Warnings

Almost all rocks, minerals (and, frankly, almost all other substances on earth) can produce toxic dust when cutting, which can cause serious respiratory conditions including silicosis.
When cutting or polishing rocks, minerals, shells, etc, all work should be done wet to minimise the dust, and a suitable respirator or extraction system should be used.


Translations

Arabic: پارگاسیت
Hindi:
Portuguese:
Bengali:
Indonesian:
Punjabi:
English:
Italian:
Russian: Паргасит
French:
Japanese:
Spanish: Pargasita
German: Pargasit
Korean:
Thai:
Gujurati:
Mandarin Chinese:
Urdu:

Further Reading / External Links