Pronunciation: [zˈɪŋka͡ɪt] (IPA) 
The mineral zinckite is spelled with a 'k' instead of a 'c' despite being named after the chemical element zinc. This is due to historical reasons, as the mineral was first described by French chemist Antoine François de Fourcroy in 1787 and at the time German was the language of science. In German, the letter 'k' is used instead of 'c' when followed by 'i' or 'e'. The IPA phonetic transcription for zinckite is /ˈzɪŋ.kʌɪt/.
Zinckite is a mineral that belongs to the sulfide group and is known scientifically as the zinc sulfide sulfate, which has the chemical formula ZnS·(ZnOH)2SO4. It is named after the German mineralogist and geologist Christian Zincke, who first discovered it in the 19th century.
Zinckite is typically found in hydrothermal ore deposits that contain zinc. Its crystal structure is orthorhombic, and it commonly occurs as fine granular masses or prismatic crystals. These crystals are often transparent to translucent and possess a vitreous to resinous luster on their surfaces. The color of zinckite varies, but it tends to exhibit shades of yellow, brown, or red, with some specimens presenting higher transparency than others.
In terms of its physical and chemical properties, zinckite has a Mohs hardness of 4 to 4.5, making it relatively soft compared to other minerals. It also has a specific gravity in the range of 4.1 to 4.3. When subjected to ultraviolet light, zinckite may fluoresce and emit a yellowish glow. However, it is not a widespread mineral and is considered relatively rare.
Zinckite has limited economic importance as it does not possess significant commercial applications. However, due to its aesthetic appeal and rarity, it is valued by mineral collectors and enthusiasts. Its distinctive crystal habit and coloration make it an attractive addition to mineral collections worldwide.
A native oxide of zinc.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "zinckite" is derived from the German term "Zinkspat", which translates to "zinc spar". It was first used in the 18th century to describe a yellow or reddish-brown mineral composed of zinc carbonate (ZnCO3). The name "zinckite" was later adopted in English, maintaining its connection to the zinc content of the mineral.
