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Terminology

  (See Amazonite) African Jade:

is generally beige with darker beige or brown mottling and veining. It is also found in various shades of white, yellow, brown and green. African Turquoise:

(See Jade) Agate:

crystalline Quartz (SiO2 - Silicon Dioxide) which is a cryptocrystalline. It is a hard stone, usually within the range of 7-9 on the Moh's scale. It is characterized by its fineness of grain and [..]

can be many different colors, and because its banding is so variable, different types of it have been given many different descriptive names. Many types of organic material have been fossilized by Aga [..]

Most Agate