Statements (48)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Mineral
|
| gptkbp:chemicalFormula |
K(Mg,Fe)3AlSi3O10(OH)2
|
| gptkbp:hasCharacter |
Vitreous
Perfect in one direction |
| gptkbp:hasColor |
Black
Brown |
| gptkbp:hasHistory |
2.5 to 3 on Mohs scale
|
| gptkbp:hasPart |
White to pale yellow
|
| gptkbp:hasParticipatedIn |
Translucent
|
| https://www.w3.org/2000/01/rdf-schema#label |
Biotite
|
| gptkbp:isAssociatedWith |
gptkb:Gneiss
gptkb:Schist Granite |
| gptkbp:isCharacterizedBy |
Layered structure
High iron content High magnesium content Cleavage planes Crystals that are tabular Sheet silicate structure Variable composition Hydroxyl_groups |
| gptkbp:isFoundIn |
Basalt
Sedimentary rocks Volcanic rocks Diorite Metamorphic rocks Igneous rocks Rhyolite Granodiorite Amphibolite Metamorphic environments Pegmatites |
| gptkbp:isInformedBy |
Cooling of magma
Metamorphic processes |
| gptkbp:isPartOf |
Mica group
Foliated rocks Non-foliated rocks |
| gptkbp:isUsedIn |
Ceramics
Education Electronics Mineralogy Petrology Research Collecting Construction materials Industrial applications Geological studies Decorative stones |