felspattia

Felspattia is a lesser-known mineral belonging to the feldspar group, specifically a variety of potassium feldspar. It is characterized by its distinctive pink to reddish-brown coloration, which often exhibits a pearly or silky luster. The name "felspattia" is derived from the combination of "feldspar" and the Latin suffix "-attica," referencing its resemblance to certain minerals historically associated with Attica, Greece.

Chemically, felspattia is composed primarily of potassium aluminum silicate (KAlSi₃O₈), though it may contain minor impurities that contribute to its color variations. It typically forms in igneous and metamorphic rocks, often found in pegmatites, where it can crystallize in well-defined, tabular shapes. Due to its rarity and unique appearance, felspattia is sometimes sought after by mineral collectors.

Visually, felspattia can be confused with other pink feldspars, such as amazonite or certain varieties of orthoclase. However, its specific hue and internal reflections help distinguish it. The mineral is relatively soft, with a Mohs hardness of about 6, making it susceptible to scratching. It is generally transparent to translucent, with a vitreous to pearly luster that enhances its aesthetic appeal.

While not widely recognized in mainstream mineralogy, felspattia has been documented in geological studies and mineralogical collections. Its occurrence is limited to specific geological formations, primarily in regions with rich potassium feldspar deposits. Due to its scarcity, specimens are often valued more for their rarity than their industrial applications, which are minimal compared to other feldspar varieties.