harmotome

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Harmotome - Wikipedia
Harmotome is a mineral, one of the rarer zeolites; a hydrated barium silicate with formula: (Ba 2(Si 12Al 4)O 32·12H2O. It forms vitreous white well defined ... en.wikipedia.org
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Harmotome: Mineral information, data and localities.
A transparent, spindle-shaped variety of harmotome that was originally described from the Strontian mines north of Morven (now Morvern), Argyllshire, Scotland, ... www.mindat.org
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HARMOTOME Definition & Meaning - Merriam-Webster
The meaning of HARMOTOME is a mineral (Ba,K)(Al,Si)2Si6O16.6H2O consisting of a hydrous silicate of aluminum, barium, and potassium. www.merriam-webster.com
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harmotome
harmotome Min. (ˈhɑːmətəʊm) Also erron. harmotone. [a. F. harmotome (Haüy), f. Gr. ἁρµός joint + -τοµος cutting; app. in reference to the fact that the octahedron divides parallel to the plane that passes through the terminal edges.] A hydrous silicate of aluminium and barium, commonly occurring in ... Oxford English Dictionary
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Synthesis of PHI-type zeolite harmotome using barium as an ...
Two natural minerals exhibiting this crystal structure are phillipsite and harmotome. Both structures contain sodium and potassium as extra- ... www.sciencedirect.com
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Harmotome Mineral Data
General Harmotome Information. Help on Chemical Formula: Chemical Formula: (Ba,Na,K)1-2(Si,Al)8O16•6(H2O). Help on Composition: ... webmineral.com
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Harmotome - IZA Commission on Natural Zeolites
Harmotome in sedimentary rocks. Harmotome is a rare constituent of sediment and sedimentary rocks. Some of the early reported occurrences involve a mineral that ... www.iza-online.org
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Harmotome | Silicate mineral, Zeolite, Orthorhombic | Britannica
Harmotome, hydrated barium aluminosilicate mineral, (Ba,Na,K)1–2 (Si,Al)8O16 ∙ 6H2O, in the zeolite family. Harmotome is isostructural with ... www.britannica.com
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[PDF] Harmotome (Ba,K)1¡2(Si,Al)8O16 ² 6H2O - Handbook of Mineralogy
Optical Properties: Transparent to translucent. Color: Colorless, white, gray, yellow, pink, brown; colorless in thin section. Streak: White. www.handbookofmineralogy.org
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(IUCr) The crystal structure of harmotome, Ba2Al4Si12O32.12H2O
Barium atoms are surrounded by six oxygen atoms and four water molecules. The cruciform twinning characteristic of the crystal is satisfactorily explained by ... journals.iucr.org
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Harmotome R070016 - RRUFF Database: Raman, X-ray, Infrared ...
Name: Harmotome RRUFF ID: R070016 Ideal Chemistry: Ba2(Si12Al4)O32·12H2O Locality: Idar-Oberstein, Germany Source: Michael Scott S101329 [view label] rruff.info
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morvenite
morvenite Min. (ˈmɔːvənaɪt) [Named by T. Thomson from Morven in Scotland, its locality: see -ite.] A variety or synonym of harmotome.1836 T. Thomson Min., Geol., etc. I. 351 The third species [of harmotome], to which I have given the name of morvenite. 1883 M. F. Heddle in Encycl. Brit. XVI. 423/1. Oxford English Dictionary
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Strontianite
These two minerals are often found in association, together with baryte, calcite, harmotome and sulfur. wikipedia.org
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stauro-
stauro- (ˈstɔːrəʊ, stɒˈrɒ) before a vowel staur-, combining form of Gr. σταυρός cross, employed in several terms, chiefly scientific. stauractin(e [Gr. ἀκτιν-, ἀκτίς ray], ‘hexactinellid spicules of the dermal sponge-layer in which two of the arms are atrophied, leaving the remaining four in the for... Oxford English Dictionary
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Brewsterite
It is found with harmotome in the lead mines at Strontian in Argyllshire. References IMA Zeolite Classification Zeolites of the World, Rudy W. wikipedia.org
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