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Lapis lazuli is a gemstone composed of a mixture of several different minerals including lazurite, huaynite, sodalite,
noselite, calcite and pyrite. Diopside, augite, mica and hornblende may also be present in small amounts.
It is imitated by a number of methods typically involving the use of dyes. Sometimes dyes are used in combination with
the crushing and reconstitution of lower grade lapis lazuli.
Lapis lazuli is characteristically recognized by its color. It yields H2S gas (smells of rotten eggs) when subjected to
HCl. The presence of pyrite can distinguish natural lapis lazuli from many (but not all) of the lapis simulants.
Lapis lazuli is a brilliant blue gemstone used in gemstone jewelry for thousands of years. It is one of the biblical
gemstones used in Aaron's vest and at one time lapis lazuli jewelry was only worn by royalty. The gemstone has a hardness of 5-7 on Mohs scale.
Its metaphysical properties are believed to include the ability to enhance awareness, insight, and intellect. It is also
said to impart wisdom and aid in self-acceptance.
Lapis lazuli is said to help cure depression, insomnia, recurring fevers, vision and hearing problems, and disorders of
the throat, lungs and immune system.
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