Alabaster

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Physical & Optical Properties

Category Collector Gems
Mohs Hardness 2.0
Specific Gravity 2.3 – 2.33
Refractive Index 1.52 – 1.53
Crystal System Monoclinic
Cleavage Good
Color various

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Alabaster
Mohs hardness of Alabaster shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Alabaster
1 Talc
2 Gypsum ●
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

β a b c Monoclinic a ≠ b ≠ c, α = γ = 90°, β ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

Where to Buy Alabaster

Amazon Wide selection

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Treatments

2Walter Schumann, Gemstones of the world (2001) More from other references 2.30 to 2.33Michael O?Donoghue, Gems, Sixth edition (2006) GoodMichael O?Donoghue, Gems, Sixth edition (2006) 1.520 to 1.530Walter Schumann, Gemstones of the world (2001) More from other references +0.010Walter Schumann, Gemstones of the world (2001) NoneWalter Schumann, Gemstones of the world (2001) White, pink, brownish.Walter Schumann, Gemstones of the world (2001) More from other references Translucent,OpaqueWalter Schumann, Gemstones of the world (2001) Translucent at edgesMore from other references Usually a brownish shadeMichael O?Donoghue, Gems, Sixth edition (2006) MonoclinicMichael O?Donoghue, Gems, Sixth edition (2006) MassiveMichael O?Donoghue, Gems, Sixth edition (2006) It may be formed in mineral veins where sulphuric acid, derived from the oxidation of pyrite and other sulphides, has acted upon limestone.Michael O?Donoghue, Gems, Sixth edition (2006) Alabaster information at mindat.org Italy&nbsp; Gems, Sixth Edition, Michael O’Donoghue , 2006, p. 378 Peru&nbsp; UK&nbsp; Gems, Sixth Edition, Michael O’Donoghue , 2006, p. 379

About Alabaster

雪花石膏是石膏的细粒块状变种，以其雪白细腻的质地著称。由于质地柔软（莫氏硬度仅2），易于雕刻加工，数千年来一直是雕刻家钟爱的材料。古埃及人大量使用雪花石膏制作装饰器皿、雕像和棺椁。现代雪花石膏主要产自意大利、西班牙和中国。

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Jewelry Use

Durability 1/10

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Frequently Asked Questions

What is Alabaster?
雪花石膏是石膏的细粒块状变种，以其雪白细腻的质地著称。由于质地柔软（莫氏硬度仅2），易于雕刻加工，数千年来一直是雕刻家钟爱的材料。古埃及人大量使用雪花石膏制作装饰器皿、雕像和棺椁。现代雪花石膏主要产自意大利、西班牙和中国。
What is the hardness of Alabaster?
Alabaster has a Mohs hardness of 2.0, making it relatively soft for use in jewelry.
What color is Alabaster?
Alabaster is primarily Various.
How much does Alabaster cost?
Alabaster falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Alabaster?
Alabaster belongs to the Monoclinic crystal system.