Wurtzite
Wurtzite is a zinc iron sulfide mineral ((Zn,Fe)S) a less frequently encountered mineral form of sphalerite. The iron content is variable up to eight percent. It is trimorphous with matraite and sphalerite.
It occurs in hydrothermal deposits associated with sphalerite, pyrite, chalcopyrite, barite and marcasite. It also occurs in low-temperature clay-ironstone concretions.
It was first described in 1861 for an occurrence in the San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia, and named for French chemist Charles-Adolphe Wurtz. It has widespread distribution. In Europe it is reported from Příbram, Czech Republic; Hesse, Germany; and Liskeard, Cornwall, England. In the US it is reported from Litchfield County, Connecticut; Butte, Silver Bow County, Montana; at Frisco, Beaver County, Utah; and from the Joplin district, Jasper County, Missouri.
Wurtzite structure
The wurtzite group includes: Cadmoselite CdSe, Greenockite CdS, Mátraite ZnS and Rambergite MnS, in addition to wurtzite.
Wurtzite crystal structure
The wurtzite crystal structure, named after the mineral wurtzite, is a crystal structure for various binary compounds. It is an example of a hexagonal crystal system. The chemical prototype is conventionally given as ZnS, although mineral wurtzite is a multi-component alloy compound.
The wurtzite crystal structure is referred to by the Strukturbericht designation B4 and the Pearson symbol hP4. The corresponding space group is No. 186 (in International Union of Crystallography classification) or P63mc (in Hermann–Mauguin notation).
Among the compounds that can take the wurtzite structure are wurtzite itself, AgI, ZnO, CdS, CdSe, α-SiC, GaN, AlN, BN and other semiconductors. In most of these compounds, wurtzite is not the favored form of the bulk crystal, but the structure can be favored in some nanocrystal forms of the material.
In materials with more than one crystal structure, the prefix "w-" is sometimes added to the empirical formula to denote the wurtzite crystal structure, as in w-BN.
Podcasts:
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by Busy Signal
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by Alesana
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by Pimpinela
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by Burst
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by Miss A
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by Jan Wickline
Artiste
by: Busy Signal[Intro:]
Wa this
Yow da one yah loud, loud, loud
Mi naw lie guess wa no
[Verse 1:]
From wa day di nuts man a artiste
The jelly man a artiste
Cane man a artiste
From wa day di lobsters a artiste
The conch dem a artiste
The fish dem a artiste
Wa this even gardener a artiste
Dancer a artiste
Go go a artiste
Jah know mi seh a wa this
He jah know mi seh a wa this
He jah know
[Chorus:]
A wa di music gone to
A wa di radio dem turn on to
All di security out a di gate seh him have a one song
an him waan perform to
Me naw tell no man wa fi do
But jah know something wrong wid unu
Certain song have a one vibe
But majority waan run in no body naw listen to
[Verse 2:]
Hey all selector turn artist
Producer turn artiste
Engineer a artiste
Wa this even painter a artiste
The plumber dem a artiste
Lectriction a artiste
Wa this yow di jerk man a artiste
Construction work man a artiste
Yow hey a wa this
Jah know mi dan mi seh a wa this
Yow hot head
[Chorus 2:]
So call artiste claim seh dem hot
Producer hustle an buy out di spot
Nuff real artiste dem road an waan some air play
But di distracki dem a juggle crop
What a disgrace in a di music facturnity
Right now di music need a surgery
Yeh cut out di foolishness
Tell dem leave like maternity
[Verse 3:]
From wa day lizard waan turn artiste
Roach waan turn artiste
Ants waan turn artiste
Wa this
Yow di flag man
All di man wa a wash mi van waan turn artiste
Wa this yow di jurk man a artiste
Construction work man a artiste
Yow hey a wa this
He jah know mi seh a wa this
He jah know
[Chorus]
[Verse 3]
[Chorus 2]