By Chisom Ibemere
Nosean is also called noselite and it is a rare mineral named after its discovery locality,Mount Vesuvius. It was first identify in Italy in 1826.
Its name “nosean” is derived from the Greek word “noseomai,” meaning “I lustre,” referring to its vitreous or glassy appearance.
Nosean typically occurs in volcanic rocks and environments, specifically in alkaline basalts and related igneous rocks. It commonly occurs as a secondary mineral in cavities or vesicles formed by volcanic activity.
Nosean has a wide distribution around the world and has been found in various locations such as Italy, Germany, Russia, Canada, the United States, and Tanzania.
Nosean is primarily valued as a collector’s mineral due to its rarity, vibrant blue color, and attractive crystal formations. Its aesthetic appeal makes it a desirable stone for jewelry enthusiasts and lapidaries who create unique, one-of-a-kind pieces.
Nosean is also occasionally used in various scientific and research applications, such as studying volcanic processes and the formation of mineral deposits.
Nosean is a tectosilicate mineral belonging to the sodalite group. It has a vitreous luster and usually occurs as nodules or crystals in blue or violet-blue colors, although it can also be white, gray, or green.
In terms of hardness, Nosean falls between 5.5 and 6 on the Mohs scale. It has a trigonal crystal system and a specific gravity ranging from 2.33 to 2.42.
Nosean is considered a rare and highly valued gemstone due to its scarcity and stunning blue color. The value of Nosean can vary depending on factors such as color intensity, clarity, and the presence of desirable crystal formations.
Gem-quality Nosean specimens with intense blue hues, good transparency, and well-formed crystals command higher prices among collectors and gem enthusiasts.
