STETEFELDTITE Meaning and
Definition
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Stetefeldtite is a rare mineral that belongs to the oxide class. It is named after its discoverer, Norwegian chemist and mineralogist Hans Stetefeldt. This mineral is most commonly found in hydrothermal deposits where it forms as a secondary mineral in oxidized zones of certain ore bodies.
Stetefeldtite has a unique chemical composition, characterized by its formula Fe 2 3+ (SO 4 ) 3 (OH)•5H 2 O. This composition indicates the presence of iron, sulfur, oxygen, hydrogen, and water molecules within its structure. It crystallizes in the orthorhombic crystal system, forming prismatic or tabular crystals that typically exhibit a bladed or fibrous appearance. Colors of stetefeldtite can vary, but it is commonly pale yellow, green, or white.
The physical properties of stetefeldtite include a pearly to silky luster and a relatively low hardness, usually around 2.5 on the Mohs scale. Its specific gravity varies between 2.2 to 2.3, indicating a relatively light density. Stetefeldtite is soluble in water due to its hydrated nature.
Due to its rarity and limited occurrence, stetefeldtite has no significant industrial uses. Its primary importance lies within the field of mineralogy and scientific research. As a mineral, stetefeldtite serves as a valuable indicator for understanding the geological processes and conditions under which it forms, providing insights into the evolution of ore deposits and hydrothermal systems.
