Tomsonit na trahitu iz regiona Bohemije u Češkoj predstavlja izuzetno zanimljiv primerak zeolitske mineralizacije u vulkanskim stenama. Ovaj uzorak potiče iz lokaliteta Vítov, Velké Březno,…
Opširnije Tomsonit na trahituTag: Trachyte
Trachyte is a light-colored, fine-grained volcanic rock composed mainly of alkali feldspar, especially sanidine. It typically forms in continental volcanic regions with alkaline magma compositions. Trachyte has a porphyritic to aphanitic texture and may contain minor quartz, biotite, or hornblende. It is often associated with volcanic domes and lava flows. Major occurrences include Italy, Germany, Kenya, and the USA. This page explores trachyte’s mineralogy, formation, and role in volcanic petrology.