Comments. Translucent albite is sometimes found that is colored a rich green by inclusions of chrome-rich jadeite. Albite is sometimes intergrown with emerald, especially in the strange hexagonal skeletal crystals known as trapiche emeralds. Facetable albite from Madagascar has indices: a = 1.530-1.531; β= 1.532-1.533; γ= 1.539-1.540; birefringence 0.009-0.010; density 2.62.
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Jul 1, 2024 · Moonstone is a type of feldspar mineral that has a unique adularescent effect, meaning it displays a shimmering, floating light effect that appears to move across the gemstone’s surface. This phenomenon is caused by light scattering between microscopic layers of albite and orthoclase within the crystal structure.. Moonstone is typically translucent to semi-transparent …
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4 days ago · ITALY – Acquisition of Idrosol (later renamed Albite) for the production and sale of sodium hydrosulphite. Installation of a steam and electricity cogeneration plant at the Altair plant in Saline di Volterra. BRAZIL – Formation of Esseco do Brasil (merged with BSA in April 2013) for the marketing and distribution of chemicals in South America.
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What is Feldspar? Feldspar is the name of a large group of rock-forming silicate minerals that make up over 50% of Earth's crust. [1] They are found in igneous, metamorphic, and sedimentary rocks in all parts of the world. Feldspar minerals have very similar structures, chemical compositions, and physical properties. Common feldspars include orthoclase (KAlSi 3 O 8), …
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Nov 1, 2022 · Figs. 2 a and 3 a show that the charge of Al and Si atoms in spodumene and albite are mainly transferred to O atom and enriched. Fig. 2 b shows that the outward charge transfer of Li atom is less and the change gradient of charge density is low. As shown in Fig. 3 b, the chemical environment of Na atom in albite is similar to that of Li atom in spodumene.
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FIGURE 9. Comparison of the room temperature unpolarized spectra of crystalline albite (before melting) and albite glass (after melting). Some of the higher-frequency vibrational mode assignments are shown. - "Raman spectroscopy and vibrational analyses of albite: From 25 °C through the melting temperature"
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Jan 1, 2020 · Albite-spodumene pegmatites challenge the general rules of pegmatite petrogenesis. According to Černý and Ercit (2005), these rocks are characterised by dominance of albite and quartz over K-feldspar, with bulk pegmatite Li concentrations in the uppermost range obtained by experimental magmatic enrichment, ...
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