GRUZDEVITE Meaning and
Definition
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Gruzdevite is a mineral that belongs to the zeolite group, specifically the subgroup known as the apophyllite series. It is a relatively rare and unusual silicate mineral that has garnered attention due to its distinctive crystal structure and unique physical properties. The mineral was first discovered in the Kovdor Massif in Russia and was named after the Russian mineralogist V.M. Gruzdev.
Gruzdevite typically occurs in cavities or fissures within volcanic rocks, often alongside other zeolite minerals such as thomsonite and stilbite. It is often found as white, colorless, or pale pink prismatic crystals that can form radiating aggregates or drusy coatings. The crystals are translucent to transparent and have a vitreous to pearly luster. Gruzdevite crystals can display a prismatic habit with square or rectangular cross-sections.
In terms of its physical properties, gruzdevite has a relatively low hardness of 4-4.5 on the Mohs scale, making it susceptible to scratching. It exhibits perfect cleavage in one direction and has a brittle tenacity. Gruzdevite is typically non-fluorescent and is not known to have any significant industrial uses. However, due to its aesthetic qualities and rarity, it is sought after by mineral collectors and enthusiasts.
Overall, gruzdevite is a fascinating and visually appealing mineral that adds to the diversity of the zeolite group. Its distinctive crystal habit, pale colors, and unique associations make it a noteworthy addition to any mineral collection.
