Anilite is a mineral composed of copper, silver, and sulfur. The spelling of the word can be explained using the International Phonetic Alphabet (IPA) as ˈænəlaɪt. The first syllable "an" is pronounced with short 'a' sound, followed by schwa sound in the second syllable "i", and a long 'i' sound in the third syllable "lite". The 't' at the end is pronounced softly and almost as a glottal stop. With this phonetic transcription, one can easily understand the pronunciation of "anilite" and avoid confusion with similar-sounding words.
Anilite is a mineral that belongs to the sulfide mineral group. It is specifically categorized as a copper sulfide, with the chemical formula Cu7S4. Named after the Sanskrit word "anila," meaning "wind," anilite commonly occurs as small, tabular or prismatic crystals. It can also be found in massive or granular form.
Anilite is typically a deep blue to blue-black mineral with a metallic luster. Its streak, which is the color left behind by rubbing it on an unglazed porcelain plate, is pale gray. It has a relatively high hardness range of 3.5 to 4 on the Mohs scale, making it moderately hard. Anilite is known for its brittle nature and uneven fracture.
This mineral is commonly associated with other copper sulfides such as chalcocite and bornite. It is primarily found in hydrothermal ore deposits, particularly those related to mafic and ultramafic rocks. Anilite is often an important ore mineral as it is rich in copper content.
For identification purposes, anilite can be distinguished from other copper sulfides by its crystal habits, relatively high copper content, and blue coloration. It can sometimes exhibit higher reflectivity and lower specific gravity compared to these sulfides. Anilite is valued among collectors due to its vivid blue color and its association with other valuable copper minerals.
The word "anilite" is derived from the mineral it represents, which is named after the French chemist and industrialist, Jean-Baptiste Dumas (1800-1884).