54

Green apatite

Weight 700 gr
CHARACTERISTICS
Weight 700 gr
Size 105x75x50 mm
Reference 210205202
Mineral group of minerals Apatite
Category Decoration stones
Group Free forms
Country Country Madagascar Madagascar
Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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Formula Ca5(PO4)3(OH, Cl, F)] APATITE
O Oxygen Other no metal 40.7%
Ca Calcium Alkaline earth metal 39%
P Phosphorus Other no metal 18.5%
H Hydrogen Other no metal 1.8%
100%
Apatite actually refers to a group of phosphate minerals that all share a hexagonal crystal structure. This variation in composition explains the wide range of colors that apatites can exhibit, from intense blue to emerald green, yellow, purple, and even colorless. Impurities present in the crystal strongly influence its color. Apatites are formed in a variety of geological environments. They are found in igneous, metamorphic and sedimentary rocks. Their formation is often linked to hydrothermal processes or the precipitation of phosphorus-rich fluids. In terms of their physical properties, apatites have a medium hardness. Their luster is vitreous and their transparency can vary depending on the presence of inclusions. Apatite is of considerable importance in geology and mineralogy. It is used as an indicator mineral to determine the conditions of rock formation. Due to its phosphorus composition, apatite plays a crucial role in biogeochemical cycles.

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Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.

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