Heulandite - Wikipedia
网页Heulandite is the name of a series of tecto-silicate minerals of the zeolite group. Prior to 1997, heulandite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to …
The Mineral heulandite - The Mineral and Gemstone Kingdom
网页Heulandite is one of the more common zeolite minerals. It has a very distinctive crystal form and has a noticeable pearly luster on cleavage surfaces. Since its original classification, Heulandite was always regarded as a single mineral …
Heulandite | Silicate, Zeolite, Healing | Britannica
网页heulandite, hydrated sodium and calcium aluminosilicate mineral in the zeolite family, formulated (Ca,Na) 2-3 Al 3 (Al,Si) 2 Si 13 O 36 ·12H 2 O. It forms brittle, transparent, coffin-shaped crystals in various shades of white through red, gray, or brown. Heulandite’s molecular structure is an open framework containing six-membered rings of ...
片沸石 - 百度百科
网页片沸石（Heulandite）是一种硅酸盐类矿物，也是沸石族矿物中的一种，常产于火山岩的气孔中。
Heulandite Meanings and Crystal Properties
网页Heulandite is a calcium sodium aluminum tecto-silicate mineral and member of the Zeolite family. It crystallizes in the form of masses and grains, as well as forming in the shape of small rhombic crystals (usually on a matrix). Heulandite can occur in a variety of different colors such as orange, yellow, white, brown, red, and green.
Heulandite: Mineral information, data and localities. - mindat.org
网页Heulandite mineral data, information about Heulandite, its properties and worldwide locations.
Heulandite: Mineral information, data and localities. - mindat.org
网页Heulandite is the name applied to specimens with unknown dominance of the extra-framework cations. It comprises heulandite-K, heulandite-Na, heulandite-Ca, ...
Heulandite-Na: Mineral information, data and localities.
网页About Heulandite-Na Hide. Formula: (Na,Ca,K)6(Si,Al)36O72 · 22H2O. Colour: White, colorless, red, yellow, brown, green. Lustre: Vitreous, Pearly. Hardness: 3 - 3½. Specific Gravity: 2.2. Crystal System: Monoclinic. Member …
Heulandite-Ca Mineral Data
网页Empirical Formula: Ca3.57Sr0.05Ba0.06Mg0.01Na1.26K0.43Al9.37Si26.7O72·26.02 (H2O) Environment: Low temperature zeolite found in a wide variety of geologic environments: volcanic rocks, metamorphic rocks, pegmatites, tuffs, and deep-sea sediments. IMA Status: Valid Species (Pre-IMA) 1822. Locality: Glasgow, Strathclyde (Dumbartonshire), Scotland.
网页Heulandite (Ca;Na2)Al2Si7O18² 6H2O °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Monoclinic. Point Group: 2=m: Crystals commonly tabular k f010g, and elongated, widest at the center, hence called \co±n-shaped," to 12 cm; also granular to massive. Twinning: With f100g as twin and contact plane. Physical Properties: Cleavage ...
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