Vanadinite

Vanadinite is mineral belonging to the apatite group of phosphates, with the chemical formula Pb5(VO4)3Cl. It is one of the main industrial ores of the metal vanadium and a minor source of lead. A dense, brittle mineral, it is usually found in the form of red hexagonal crystals. It is an uncommon mineral, formed by the oxidation of lead ore deposits such as galena. First discovered in 1801 in Mexico, vanadinite deposits have since been unearthed in South America, Europe, Africa and other parts of North America.
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Noun
1. a mineral consisting of chloride and vanadate of lead; a source of vanadium
(hypernym) mineral
(substance-meronym) vanadium, V, atomic number 23

(n.)
A mineral occurring in yellowish, and ruby-red hexagonal crystals. It consist of lead vanadate with a small proportion of lead chloride.
  

General Information:
 Chemical Formula:
Pb5(VO4)3Cl
 Composition:
(Molecular Weight = 1,416.27 gm)
Vanadium 10.79 % V 
Lead 73.15 % Pb
Chlorine 2.50 % Cl
Oxygen 13.56 % O 
 Empirical Formula:
Pb5(VO4)3Cl
 Name Origin:
Named for its vanadium content.
Physical Properties:
 Cleavage:
None
 Color:
brown, brownish yellow, brown red, colorless, or yellow.
 Density:
6.8 - 7.1, Average = 6.94
 Diaphaniety:
Subtranslucent to opaque
 Habits:
Globular - Spherical, or nearly so, rounded forms (e.g. wavellite)., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Nodular - Tuberose forms having irregular prot uberances over the surface.
 Hardness:
3.5-4 - Copper Penny-Flourite
 Luminescence:
None.
 Luster:
Adamantine
 Streak:
brownish yellow
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Eng: vanadinite
Urdu: سیسے کے وینیڈیٹ اور کلورائیڈ کا مُرکب جو پیلی ، بھوری قلموں کی شکل میں پایا جاتا ہے ۔