This HTML5 document contains 18 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Subject Item

n2:

rdf:type

n18:

rdfs:label

Brammallite

rdfs:comment

Brammallite is a sodium rich analogue illite. First found in 1943 in Llandybie, Carmarthenshire, Wales, it is named after British geologist and mineralogist Alfred Brammall (1879-?). Believed to be a degradation product of paragonite, like illite it is a non-expanding, clay-sized, micaceous mineral. Brammallite is a phyllosilicate or layered silicate. Structurally, brammallite is quite similar to muscovite or sericite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium.

owl:sameAs

dbr:Brammallite

dcterms:subject

n8: n9: n13: n17: n19: n20:

n14:wikiPageUsesTemplate

n15: n22:

n21:

2

n5:

Brammallite

n3:

White

n4:

Na0.65Al2.0Al0.65Si3.35O102

n6:

White

n10:abstract

Brammallite is a sodium rich analogue illite. First found in 1943 in Llandybie, Carmarthenshire, Wales, it is named after British geologist and mineralogist Alfred Brammall (1879-?). Believed to be a degradation product of paragonite, like illite it is a non-expanding, clay-sized, micaceous mineral. Brammallite is a phyllosilicate or layered silicate. Structurally, brammallite is quite similar to muscovite or sericite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium. The chemical formula is given as (Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)]. It occurs as aggregates of small monoclinic dark grey-brown crystals. Due to the small size, positive identification usually requires x-ray diffraction analysis.