Aquamarine is a precious stone, a type of beryl (same mineral family as emeralds), characterized by its:
*Properties:*
1. Color: Pale blue, blue-green, or blue-violet
2. Hardness: 7.5-8 on Mohs scale
3. Density: 2.65-2.85 g/cm³
4. Refractive index: 1.56-1.58
5. Chemical composition: Beryllium aluminum silicate (Be3Al2Si6O18)
*Characteristics:*
1. Calming blue color, reminiscent of seawater
2. Often has inclusions or imperfections
3. Available in various shades, from pale to vibrant blue
4. Relatively rare in vibrant blue colors
*Types:*
1. Blue Aquamarine: Most valuable and sought-after
2. Green Aquamarine: Less valuable, but still prized
3. Colorless Aquamarine: Rare and valuable
4. Cat's Eye Aquamarine: Displays chatoyancy (moving light reflection)
*Sources:*
1. Brazil
2. Madagascar
3. Russia (Ural Mountains)
4. Pakistan (Gilgit-Baltistan, Skardu)
5. United States (Colorado, California)
*Historical Significance:*
1. Ancient Romans and Greeks prized aquamarine for its beauty
2. Associated with mermaids and sea gods in mythology
3. Believed to bring calmness, clarity, and good fortune
*Care and Maintenance:*
1. Avoid exposure to direct sunlight
2. Store separately to prevent scratching
3. Clean with mild soap and water
4. Avoid harsh chemicals or high temperatures
*Price Range:*
1. Lower quality (inclusions, pale color): $50-$500 per carat
2. Medium quality (moderate color, some inclusions): $500-$2,000 per carat
3. High quality (vibrant color, few inclusions): $2,000-$5,000 per carat
4. Exceptional quality (intense color, flawless): $5,000-$20,000 per carat
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