lazurite – מילון אנגלי-אנגלי

Babylon English

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lazurite

n. dark blue mineral which is found in the semi-precious gemstone lapis lazuli

English Wikipedia - The Free Encyclopedia

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Lazurite

Lazurite is a tectosilicate mineral with sulfate, sulfur and chloride with formula: (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)]. It is a feldspathoid and a member of the sodalite group. Lazurite crystallizes in the isometric system although well formed crystals are rare. It is usually massive and forms the bulk of the gemstone lapis lazuli.

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Babylon German-English

הורד מילון בבילון 9 למחשב שלך

Lazurit (das)

n. lazurite, mineral which forms dark blue crystals

Babylon French-English

הורד מילון בבילון 9 למחשב שלך

lazurite

nf. lazurite, dark blue mineral which is found in the semi-precious gemstone lapis lazuli, azure-blue mineral

Mineralogy Database

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Lazurite

General Information:

Chemical Formula:
Na3Ca(Al3Si3O12)S

Composition:
(Molecular Weight = 498.31 gm)
Sodium 13.84 % Na
Calcium 8.04 % Ca
Aluminum 16.24 % Al
Silicon 16.91 % Si
Sulfur 6.43 % S
Oxygen 38.53 % O

Empirical Formula:
Na3CaAl3Si3O12S

Locality:
District of Badakhshan, Afghanistan.

Name Origin:
From the Persian lazward - "blue."
Physical Properties:

Cleavage:
[110] Imperfect

Color:
blue, azure blue, violet blue, or greenish blue.

Density:
2.38 - 2.42, Average = 2.4

Diaphaniety:
Translucent

Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,

Hardness:
5.5 - Knife Blade

Luminescence:
Fluorescent.

Luster:
Vitreous - Dull

Streak:
light blue
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lazurite – מילון אנגלי-עברי

lazurite – מילון אנגלי-אנגלי