Hurlbutite and Lapis lazuli Physical Properties

Hurlbutite

Lapis lazuli

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.902.50-3.00

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

None

3,6

1.7 Mohs Hardness

65.5

2 10

1.8 Chemical Composition

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

Hurlbutite and Lapis lazuli Chemical Formula

While comparing Hurlbutite and Lapis lazuli physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Hurlbutite and Lapis lazuli chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

Compare Green Gemstones

Hurlbutite Vs Liddicoatite

Hurlbutite Vs Lizardite

Hurlbutite Vs Lazurite

Hurlbutite and Lapis lazuli Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.