noun
trichite
A technical term in mineralogy for a hair-like crystal or crystalline inclusion, often found in volcanic glass or other minerals.
黒曜石の中に毛状晶子が観察されることがある。
Trichites can sometimes be observed inside obsidian.
The term is composed of 毛状 (hair-like) and 晶子 (crystallite), reflecting its hair-like crystalline appearance. The exact historical derivation is uncertain.