Statements (58)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:Iron_Age
|
| gptkbp:chemical_formula |
K(Mg, Fe)3 Al Si3 O10(OH)2
|
| gptkbp:composed_of |
gptkb:Iron_Age
Aluminum Magnesium Potassium Silicate tetrahedra Octahedral sheets |
| gptkbp:difficulty |
2.5 to 3 on Mohs scale
|
| gptkbp:has_cleavage |
gptkb:Perfect
|
| gptkbp:has_color |
gptkb:Black
gptkb:Brown |
| gptkbp:has_crystal_system |
Monoclinic
|
| gptkbp:has_specific_gravity |
2.7 to 3.3
|
| https://www.w3.org/2000/01/rdf-schema#label |
Biotite
|
| gptkbp:is_a |
Phyllosilicate
|
| gptkbp:is_associated_with |
Sedimentary rocks
Volcanic rocks Metamorphic rocks Granitoids |
| gptkbp:is_found_in |
gptkb:granite
gptkb:Rhyolite gptkb:volcano Schist Diorite Metamorphic rocks Pegmatite Igneous rocks Amphibolite Hornfels |
| gptkbp:is_part_of |
gptkb:granite
Gneiss |
| gptkbp:is_related_to |
Mica
|
| gptkbp:is_transparent_to |
gptkb:Translucent
|
| gptkbp:is_used_in |
gptkb:ceramics
gptkb:cosmetics Electronics Geology Geotechnical engineering Petrology Soil science Mining industry Environmental studies Geochronology Construction materials Paints and coatings Industrial applications Rubber industry Mineral exploration Geochemical studies Decorative stones Thermal conductivity studies Petrographic analysis Filler materials Plastics and composites |
| gptkbp:luster |
Vitreous
|
| gptkbp:bfsParent |
gptkb:Titanite
|
| gptkbp:bfsLayer |
5
|