• Macdonaldite - Wikipedia

    en.wikipedia.org/wiki/Macdonaldite Macdonaldite is a rare barium silicate mineral with a chemical formula of BaCa 4 Si 16 O 36 (OH) 2 ·10H 2 O. Macdonaldite was first described in 1965 and named for Gordon A. MacDonald (1911–1978) an American volcanologist at the University of Hawaii.. Macdonaldite crystallises in the orthorhombic system. Macdonaldite is anisotropic with low relief. Macdonaldite appears as veins and fracture ...
  • Macdonaldite: Mineral information, data and localities.

    www.mindat.org/min-2506.html Macdonaldite mineral data, information about Macdonaldite, its properties and worldwide locations. SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser! Log In Register.
  • Macdonaldite Mineral Data

    webmineral.com/data/Macdonaldite.shtml A Bijoux Google Search for Macdonaldite Dakota Matrix Minerals Google Search for Macdonaldite John Betts Fine Minerals Search for Macdonaldite McDougall Minerals Google Search for Macdonaldite Rock and Mineral Shows Google Search for Macdonaldite Weinrich Minerals, Inc. Google Search for Macdonaldite. Ask about Macdonaldite here :
  • Macdonaldite Mineral Specimen For Sale

    www.dakotamatrix.com/products/13494/macdonaldite Macdonaldite - White to colorless acicular or bladed sprays of Macdonaldite to 1mm. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.
  • Gordon A. MacDonald - Wikipedia

    en.wikipedia.org/wiki/Gordon_A._MacDonald Gordon Andrew MacDonald (Boston, 15 October 1911 – Oahu, 20 June 1978) was a notable American volcanologist.. Life. His father John Austin MacDonald, son of Stephen Andrew MacDonald delivered wines to Boston hotels. But he lost his income with the Prohibition (1920) and died in 1922. Grace MacDonald and her two children moved to California (1926); Mac graduated the Garfield High School, East ...
  • Macdonaldite: Properties and Occurrences - Assignment Point

    www.assignmentpoint.com/science/.../macdonaldite-properties-and-occurrences.html Macdonaldite is a rare barium silicate mineral with a chemical formula of BaCa 4 Si 16 O 36 (OH) 2 ·10H 2 O. It is an orthorhombic-dipyramidal mineral containing barium, calcium, hydrogen, oxygen, and silicon. Macdonaldite was first described in 1965 and named for Gordon A. MacDonald (1911–1978) an American volcanologist at the University of Hawaii.
  • Category:Macdonaldite - Wikimedia Commons

    commons.wikimedia.org/wiki/Category:Macdonaldite This page was last edited on 26 May 2018, at 06:26. Files are available under licenses specified on their description page. All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.
  • Macdonaldite Mineral Specimen For Sale

    www.dakotamatrix.com/products/13409/macdonaldite Macdonaldite - A small specimen from Big Creek, the type locality. Acicular radiating sprays to about 1mm. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.
  • What does macdonaldite mean? - definitions

    www.definitions.net/definition/macdonaldite Definition of macdonaldite in the Definitions.net dictionary. Meaning of macdonaldite. What does macdonaldite mean? Information and translations of macdonaldite in the most comprehensive dictionary definitions resource on the web.
  • Macdonaldite dictionary definition | macdonaldite defined

    www.yourdictionary.com/macdonaldite macdonaldite definition: Noun 1. (mineralogy) An orthorhombic-dipyramidal mineral containing barium, calcium, hydrogen, oxygen, and silicon.Origin -ite...