Zincite

Zincite is the mineral form of zinc oxide (ZnO). In nature its crystal form is rare, with the exception of Franklin, New Jersey, an area also known for its fluorescent minerals. It has a hexagonal crystal structure and color that depends on impurities. The zincite found in Franklin, New Jersey is red-colored (mostly due to iron and manganese) and associated with willemite and franklinite. Zincite crystals can be grown artificially and synthetic zincite crystals are available as a by-product of zinc smelting. Synthetic crystals can be colorless or range in color from dark red, orange, yellow to light green.
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(n.)
Native zinc oxide; a brittle, translucent mineral, of an orange-red color; -- called also red zinc ore, and red oxide of zinc.
  

General Information:
 Chemical Formula:
(Zn,Mn)O
 Composition:
(Molecular Weight = 81.39 gm)
Zinc 80.34 % Zn
Oxygen 19.66 % O 
 Empirical Formula:
ZnO
 Environment:
Metamorphosed weathered ore deposit.
 Locality:
Major zinc ore at Sterling Hill and Franklin, New Jersey.
 Name Origin:
Named after its composition containing zinc (From the German, "zink")
Physical Properties:
 Cleavage:
[0001] Perfect
 Color:
yellow, dark yellow, dark red, or orange.
 Density:
5.43 - 5.7, Average = 5.56
 Diaphaniety:
Translucent to subtranslucent
 Habits:
Massive - Fibrous - Distinctly fibrous fine-grained forms., Granular - Generally occurs as anhedral to subhedral crystals in matrix., Disseminated - Occurs in small, distinct particle s dispersed in matrix.
 Hardness:
4-5 - Fluorite-Apatite
 Luminescence:
None.
 Luster:
Sub Metallic
 Streak:
yellowish orange
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ZINCITE

Eng: zincite
Urdu: (کیمِیا) زِنکائٹ ۔ گہرے سُرخ نارَنجی زَرد تَک کے رَنگوں والا ایک بھُربھُرا مَعدَن ۔