Albite

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Physical & Optical Properties

Category Semi-Precious Gems

Mohs Hardness 6,0 – 6,5

Specific Gravity 2,6 – 2,65

Refractive Index 1,525 – 1,542

Crystal System Triclinic

Luster Vitreous,Pearly

Cleavage Perfect

Fracture Uneven,Conchoidal

Color various

Birefringence 0,008

Mohs Hardness

Mohs hardness of Albite shown against the ten reference minerals, from talc (1) to diamond (10).

Mohs	Reference mineral	Albite
1	Talc
2	Gypsum
3	Calcite
4	Fluorite
5	Apatite
6	Orthoclase	●
7	Quartz
8	Topaz
9	Corundum
10	Diamond

Crystal System

Value & Market

Price Tier Moderate ($50-500/ct)

Where to Buy Albite

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

Irradiation may turn colourless material blue if lead and water impurities are present (see amazonite). 6 to 6.5Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references 2.60 to 2.65Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references BrittleMichael O?Donoghue, Gems, Sixth Edition (2006) PerfectMichael O?Donoghue, Gems, Sixth Edition (2006) Perfect to excellent Uneven,ConchoidalMichael O?Donoghue, Gems, Sixth Edition (2006) 1.525 to 1.542Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references Biaxial/+Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) 0.008 to 0.011Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references WeakMichael O?Donoghue, Gems, Sixth Edition (2006) Colourless, greenish, bluish, black (adularescent)Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references Transparent,Translucent,OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references Vitreous,PearlyMichael O?Donoghue, Gems, Sixth Edition (2006) White, greenMichael O?Donoghue, Gems, Sixth Edition (2006) GreenMichael O?Donoghue, Gems, Sixth Edition (2006) Golden brown, greenMichael O?Donoghue, Gems, Sixth Edition (2006) TriclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references Albite information at mindat.org Brazil  Myanmar  Ted Themelis (2008) Gems & mines of Mogok

About Albite

A albite é um feldspato sódico pertencente à série dos plagioclases, com coloração geralmente branca, acinzentada ou por vezes azulada. Forma-se em rochas ígneas ácidas como os granitos e em rochas metamórficas. Algumas variedades gemológicas de albite são utilizadas em joalharia, nomeadamente o peristerite, que exibe uma adularescência azulada semelhante à pedra-da-lua. O nome deriva do latim "albus", que significa branco, referindo-se à cor mais comum do mineral. A albite é um dos minerais mais abundantes na crosta terrestre e é frequentemente encontrada em associação com quartzo e micas em pegmatitos.

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