Turquoise
Fun Fact: Turquoise is world-wide mineral used as a gemstone for jewellery.
Introduction: Turquoise is world-wide mineral used as a gemstone for jewellery. It occurs as a secondary mineral in some copper deposits and aluminium enriched rocks. Turquoise is the French word for 'Turksish', where it came from, via Iran.
Distribution: Rubicon pegmatites and from Bogenfels in the early 20th century
Composition: Phosphate
Crystal system: Triclinic
Lustre: Waxy, dull, vitreous
Streak: Pale green to white
Hardness: 5-6
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