Pronunciation: [lˈuːkəpˌɪɹa͡ɪt] (IPA) 
Leucopyrite is a mineral with the chemical formula Fe2+2Fe3+2Sb5+2O13. The spelling of this word is based on its Greek origin, where "leuco" means white and "pyrite" means fire. The correct way to pronounce Leucopyrite is /ljuːkəʊˈpaɪraɪt/, with stress on the second syllable. The IPA phonetic transcription for this word includes the vowel sounds /u/, /ɒ/, and /aɪ/, along with the consonant sounds /l/, /k/, /p/, and /r/.
Leucopyrite is a mineral compound that occurs in nature as a white, gray, or yellowish crystal. It is primarily composed of iron and sulphur, with a chemical formula FeS2. Also known as white pyrite or arsenical pyrite, leucopyrite is closely related to the more commonly known mineral, pyrite.
The name "leucopyrite" is derived from the Greek words "leukos," meaning white, and "pyrites," meaning firestone - an apt description of its color and its resemblance to pyrite. Its distinguishing feature is its color, which sets it apart from traditional pyrite minerals. Leucopyrite typically forms in hydrothermal deposits and is often associated with minerals such as quartz, sphalerite, and galena.
The crystal structure of leucopyrite is cubic, belonging to the pyrite group of minerals. It has a relatively high hardness, measuring around 6-6.5 on the Mohs scale. Its metallic luster and characteristic pale color make it visually distinctive. However, caution should be exercised when handling leucopyrite, as it may contain traces of arsenic, which makes it toxic and potentially harmful if ingested or inhaled.
Leucopyrite has limited commercial use due to its scarcity and the health risks associated with its toxicity. However, it is occasionally sought after by mineral collectors for its unusual appearance and rarity. Among its properties, leucopyrite may exhibit a weak magnetic response and can strike sparks when struck against a hard surface.
A mineral of a colour between white and steel-grey, with a metallic lustre, employed for the production of white arsenic, and also of artificial orpiment.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word Leucopyrite is a combination of two Greek words - leuko meaning white and pyrites meaning firestone or rock that produces sparks.
The term was coined due to the resemblance of Leucopyrite to pyrite in terms of appearance and its ability to spark when struck against metal or another mineral. The prefix leuco was added to differentiate it from pyrite, which often has a brassy or golden color. Leucopyrite is a mineral that appears white or silver, which led to the name white pyrite.
