lepidomelane
Definition
- Noun:
- A type of mica mineral: Lepidomelane is a specific variety of the mica mineral group, characterized as an iron-rich biotite.
Usage Examples
- Noun:
- The geologist identified the black, shiny flakes in the rock as lepidomelane.
- Lepidomelane is often found in granitic and metamorphic rocks.
Advanced Usage
- Scientific Classification: In mineralogy, "lepidomelane" is used to specify a dark, iron-bearing mica within the broader biotite series, helping to describe the precise chemical composition of a rock sample.
Variants and Related Words
- Biotite (n): A common rock-forming mineral of the mica group, of which lepidomelane is an iron-rich variety.
- Mica (n): A group of silicate minerals known for their perfect basal cleavage, allowing them to split into thin, often transparent sheets.
Synonyms
- Iron-rich biotite: A descriptive synonym that highlights its chemical composition.
- Black mica: A general, non-technical term that could refer to lepidomelane or other dark micas like phlogopite.
Related Terms
- Phyllosilicate (n): The broader class of silicate minerals to which mica, and therefore lepidomelane, belongs, characterized by sheet-like structures.
Noun
-
a mica that is a biotite containing iron
