-
Type: Raw lapis lazuli stone.
-
Weight: 20-30g.
-
Size: 3-5cm.
-
Color: Deep, vibrant blue with natural golden pyrite inclusions.
-
Origin: This lapis lazuli specimen is sourced from Afghanistan.
Perfect For:
-
Collectors: An exquisite addition to any mineral or gemstone collection.
Lapis Lazuli Composition
Lapis lazuli is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color. Its composition is a complex mix of several minerals, contributing to its distinctive appearance.
Primary Components:
-
Lazurite:
-
Chemical Formula: (Na,Ca)₈(AlSiO₄)₆(SO₄,S,Cl)₂
-
Contribution: Provides the deep blue color that characterizes lapis lazuli.
-
Calcite:
-
Chemical Formula: CaCO₃
-
Contribution: Appears as white streaks or patches within the stone.
-
Pyrite:
-
Chemical Formula: FeS₂
-
Contribution: Adds sparkling gold flecks throughout the stone.
-
Sodalite:
-
Chemical Formula: Na₈(Al₆Si₆O₂₄)Cl₂
-
Contribution: Contributes to the blue color and sometimes found in lapis lazuli.
Other Possible Components:
-
Diopside: CaMg(Si₂O₆)
-
Enstatite: Mg₂Si₂O₆
-
Mica: May contribute to the stone's texture and appearance.
The unique combination of these minerals, particularly the dominance of lazurite, gives lapis lazuli its characteristic deep blue color with specks of gold and veins of white, making it a distinctive and highly valued gemstone.