Gem Origins

     

    GEMSTONE – BIRTHSTONES

    WHERE FROM

    HARDNESS

    Garnet

    Bohemia, Czechoslovakia

    6 ½ – 7 ½

    Amethyst

    Brazil, Uruguay, Bolivia

    7

    Aquamarine

    Brazil, Madagascar, Mozambique

    7 – 8

    Diamond

    Antwerp, Belgium

    10

    Emerald

    Columbia, Zambia, Brazil

    7-8

    Alexandrite

    Brazil, Sri-Lanka

    8 ½

    Ruby

    Burma, Thailand, Cambodia

    9

    Peridot

    Egypt, Pakistan, Arizona

    6 ½ – 7

    Sapphire

    Kashmir, Burma, Sri-Lanka

    9

    Pink Tourmaline

    Brazil, Pakistan, Afghanistan

    7 – 7 ½

    Topaz

    Brazil, Pakistan, Sri-Lanka

    8

    Blue Zircon

    Cambodia, Thailand, Sri-Lanka

    6 – 7 ½

    GEMSTONE – OTHERS

    WHERE FROM

    HARDNESS

    Agate: Drusy, Bloodstone, Onyx

    Brazil, Madagascar, India

    6 – 7

    Hauynite

    Germany

    6

    Iolite

    India, Sri-Lanka, Tanzania, Brazil

    7 – 7 ½

    Jade

    Burma,Taiwan, Brit. Columbia, Australia

    6 – 6 ½

    Kunzite

    California

    6 ½ – 7

    Kyanite

    Nepal

    5 – 7

    Lapis Lazuli

    N. E. Afghanistan, Chile

    Liddicoatite (Tourmaline)

    Madagascar

    Malachite

    Zaire, Russia, Zambia

    Moonstone

    Sri-Lanka, Burma, India

    6 – 6 ½

    Opal

    Australia, Mexico, Brazil

    5 ½ – 6 ½

    Rhodochrosite

    Argentina

    3 – 4

    Scapolite

    Burma, Brazil, Sri-Lanka

    5 ½ – 6

    Sphalerite

    Santander, Spain

    3 ½ – 4

    Sphene (Titanite)

    Brazil

    5 – 5 ½

    Spinel

    Burma, Sri-Lanka

    8

    Tanzanite

    Tanzania

    6 – 7

    There are many systems used to measure hardness, which is defined several different ways. Gemstones and other minerals are ranked according to their Mohs hardness. Mohs hardness refers to a material’s ability to resist abrasion or scratching. Note that a hard gem or mineral is not automatically tough or durable.