Thomsonite is a mineral that is part of the zeolite group. Its spelling is pronounced as /ˈtɒmsənaɪt/ using the International Phonetic Alphabet (IPA). The first syllable is stressed, and the "th" sound is pronounced as /t/. The "o" is pronounced as a short /ɒ/ sound, followed by /m/ and /s/ sounds. The last syllable is pronounced as /naɪt/ with a long /aɪ/ sound. The correct spelling of Thomsonite is important for properly identifying this particular mineral.
Thomsonite is a mineral that belongs to the zeolite group and consists of hydrated sodium, calcium, and aluminum silicate. It typically forms in cubic or prismatic crystals, although it can also occur in the form of nodules or granular aggregates. The mineral is named after Thomas Thomson, a Scottish chemist and mineralogist who contributed greatly to the study of minerals.
Thomsonite is usually found in basaltic volcanic rocks, especially those associated with basalt-filled amygdules (cavities formed by gas bubbles) in volcanic lava flows. It can also be found in metamorphic rocks that have undergone alteration due to hydrothermal activity. Thomsonite can range in color, from colorless or white to shades of pink, green, yellow, or brown.
Known for its striking appearance and unique properties, thomsonite is sought after by collectors and lapidaries. The mineral boasts an impressive luster, which can be vitreous or pearly, and it is often transparent to translucent. Thomsonite is also valued for its characteristic pattern of intersecting streaks, known as "heckle markings," which form as a result of internal growth patterns.
Due to its porous nature, thomsonite has been utilized in various applications. It is commonly employed as an absorbent material for water and chemical solutions, as a catalyst in chemical reactions, and as an ion-exchange agent. Additionally, this mineral has also been considered for decorative purposes, such as making jewelry or ornamental carvings.
A mineral of the zeolite family, of a whitish colour, occurring in rectangular prisms in the cavities found in amygdaloid, basalt, greenstone, and old lava.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "Thomsonite" is derived from the name of the Scottish mineralogist, Thomas Thomson. Thomson was born in 1773 and was particularly known for his contributions to the field of mineralogy and chemistry. Thomsonite, a type of zeolite mineral, was named in his honor by the Scottish mineralogist, Robert Jameson, in 1820.