ARSENOGOYAZITE Meaning and
Definition
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Arsenogoyazite is a mineral that belongs to the phosphate mineral group. It is a relatively rare mineral that is typically found in granite pegmatites and certain other metamorphic rocks. The name of this mineral is derived from its chemical composition, as it contains both arsenic and the element yttrium.
The structure of arsenogoyazite consists of a phosphate group, which is made up of phosphorus and oxygen atoms, along with additional atoms of arsenic and yttrium. The chemical formula for arsenogoyazite is typically written as (Ba,Y)(Al,Fe3+,Mn2+)2[(As,V)O4]2(OH,F), representing the presence of various elements within its composition.
In terms of physical characteristics, arsenogoyazite typically presents as small, lustrous crystals that can range in color from yellow to reddish-brown. It has a Mohs hardness of around 4 to 5, making it moderately hard. Arsenogoyazite is also known for its transparency, with crystals often exhibiting a vitreous or resinous luster.
Although arsenogoyazite is not a widely known mineral, its unique chemical composition and relatively rare occurrence make it of interest to mineralogists and collectors. Its presence can be used as an indicator of specific geological conditions and processes that led to its formation.
Etymology of ARSENOGOYAZITE
The word "arsenogoyazite" is derived from two main parts: "arseno-" and "goyazite".
1. "Arseno-" is derived from the chemical element "arsenic", which is represented by the symbol "As" in the periodic table. Arsenic derives its name from the Latin word "arsenicum" and the Greek word "arsenikon", both of which were used to refer to yellow orpiment, a common arsenic mineral.
2. "Goyazite" is the name of a specific mineral. It is named after the Brazilian state of Goiás, where it was first discovered in the 19th century. The term "goyazite" is a common naming convention in mineralogy, where minerals are often named after the location of their discovery or other relevant factors.
