This has the advantage of allowing synthesis of relatively large amounts of material and controlled elemental substitutions. This paper presents a sol–gel method of albite synthesis that requires hydrothermal processing followed by high-temperature recrystallization, but no high-pressure environments. In fact, most successful syntheses require the combination of high-pressure, high-temperature, and hydrothermal environments. The expanded scale for the KAlSi 3 O 8 (Or) component emphasizes the lower K content of tholeiitic plagioclases (T) compared to. Synthesis of albite, however, has long been a problem, even at high temperatures and even at high pressures when dry. Plot of plagioclase compositions on the feldspar ternary diagram. Albite (NaAlSi₃O₈) makes up the sodium corner of the feldspar ternary diagram (KAlSi₃O₈ - NaAlSi₃O₈ – CaAl₂Si₂O₈) and connects the alkali-feldspar and plagioclase binary joins. Ternary diagrams showing the composition of feldspars in different samples. 459-467 ISSN: 0021-9797 Subject: crystallization, plagioclase, sodium, sol-gel processing Abstract: Feldspars are the most abundant minerals in the Earth’s crust, and are also important constituents of many lunar rocks and some stony meteorites. Allard Source: Journal of colloid and interface science 2021 v.603 pp. Ternary feldspar diagram illustrating three distinct plagioclase (Plg) types. Sol-gel synthesis of nano-scale, end-member albite feldspar (NaAlSi3O8) Author: L.M.
