Amblygonite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.0
Specific Gravity
2.98 – 3.1
Refractive Index
1.578 – 1.646
Crystal System
Triclinic
Luster
Vitreous,Pearly
Cleavage
Perfect
Fracture
Sub-Conchoidal
Color
various
Birefringence
0.02
Dispersion
0.014
Pleochroism
Absent
Mohs Hardness
Mohs Hardness: 6.0
1 Soft10 Hard
Crystal System
Value & Market
Price Tier
Moderate ($50-500/ct)
Where to Buy Amblygonite
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
Treatments
Colorless material has been reported by Pough(1957) to turn to greenish yellow color on irradiation. Heat could be expected to reverse this change.
6Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
2.98 to 3.10Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
PerfectHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Sub-ConchoidalArthur Thomas, Gemstones (2009)
Moderate heat sensitivityArthur Thomas, Gemstones (2009)
1.578 to 1.646Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Biaxial/+,-Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
0.020 to 0.030Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
AbsentWalter Schumann, Gemstones of the world (2001) More from other references
0.014 to 0.015Walter Schumann, Gemstones of the world (2001) More from other references
Colourless, yellowish, pink, brown, green, blueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
Vitreous,PearlyArthur Thomas, Gemstones (2009)
Very weak, green.Walter Schumann, Gemstones of the world (2001)
Inert to weak-greenHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
May phosphosesce light blue to LW and SWHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
TriclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Usually massiveArthur Thomas, Gemstones (2009)
Amblygonite information at mindat.org
Brazil
Myanmar
Ted Themelis (2008) Gems & mines of Mogok
Ted Themelis (2008) Gems & mines of Mogok
Ted Themelis (2008) Gems & mines of Mogok
Ted Themelis (2008) Gems & mines of Mogok
About Amblygonite
Amblygonite is a pale, often white to yellowish or greenish lithium aluminum fluorophosphate mineral that occasionally yields large, glassy faceted gems for collectors. It forms in lithium-rich granitic pegmatites alongside other lithium minerals such as tourmaline and lepidolite, with notable gem sources in Brazil, Myanmar, and Namibia. Despite its modest hardness and perfect cleavage making it a delicate gem, faceted amblygonite can reach impressive sizes exceeding 100 carats.
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Amblygonite?
Amblygonite is a pale, often white to yellowish or greenish lithium aluminum fluorophosphate mineral that occasionally yields large, glassy faceted gems for collectors. It forms in lithium-rich granitic pegmatites alongside other lithium minerals such as tourmaline and lepidolite, with notable gem s
What is the hardness of Amblygonite?
Amblygonite has a Mohs hardness of 6.0, making it moderate for use in jewelry.
What color is Amblygonite?
Amblygonite is primarily Various.
How much does Amblygonite cost?
Amblygonite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Amblygonite?
Amblygonite belongs to the Triclinic crystal system.