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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Lapis_lazuli
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1992-09-03
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406b
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11 lines
A rock containing the blue mineral lazurite
in a matrix of white calcite with small
amounts of other minerals. It occurs in
silica-poor igneous rocks and metamorphic
limestones found in Afghanistan, Siberia,
Iran, and Chile. It was formerly used in the
manufacture of ultramarine pigment. Lapis
lazuli was a valuable pigment of the Middle
Ages, also used as a gemstone and in inlaying
and ornamental work.