Glimmer

Posted by admin on August 12, 2017 in Uncategorized |

Glimmer er et stof der består af tynde lag af (phyllo)silikatmineraler. Glimmer er let at spalte med f.eks. et knivsblad. Glimmer består kemisk af følgende: Strukturelt klassificeres glimmer som di-oktahedralt (Y = 4) og tri-oktahedralt (Y = 6). Hvis X-ionerne er K eller Na, er det “almindeligt” glimmer, hvorimod hvis X-ionerne er Ca, klassificeres glimmeret […]

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Solidago spithamaea

Posted by admin on March 22, 2017 in Uncategorized |

Solidago spithamaea is a species of flowering plant in the aster family known by the common name Blue Ridge goldenrod. It is native to a very small region around the border between North Carolina and Tennessee in the United States. Its three remaining populations are threatened by the loss and degradation of its habitat. It […]

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