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Smithsonite & Barite, from Middlesmoor Mine, Kettlewell, North Yorkshire, UK (No.22)
£ 30.00
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Smithsonite & Barite, from Middlesmoor Mine, Kettlewell, North Yorkshire, UK (No.22)Smithsonite & Barite, from Middlesmoor Mine, Kettlewell, North Yorkshire, UK

Measurements Approx.
Height - 5.2 cm
Width - 2.7 cm
Length - 6.5 cm



Most Smithsonite is spherular, botryoidal, stalactitic, massive or earthy. Crystals are uncommon; they are prismatic, rhombohedral, or scalenohedral, and often have curved faces.


Smithsonite can be of various colours including yellow, orange, brown, pink, lilac, white, grey, green and blue. It forms oxidised zones of zinc deposits and in adjacent carbonate rocks. Like Hermimorphite, it used to be know as calamine.


  

Barite is a barium sulphate crystal with an orthorhombic crystal system. Most often it is colourless, white, light blue or green. Less frequently, it can be yellowish or reddish brown. It forms in a variety of patterns, is frequently tabular, but can also occur in rosettes, crested or granular shapes. One of the most common occurrences of Barite is a rosette formation known as the ‘desert rose’. Barite is found most abundantly in England, Romania and the USA.

 


  

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