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gptkbp:instance_of
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gptkb:item
|
|
gptkbp:bfsLayer
|
4
|
|
gptkbp:bfsParent
|
gptkb:Kimberlite_Pipes
gptkb:Titanite
gptkb:Ancillary_Sword
|
|
gptkbp:artifacts
|
gptkb:Zord
gptkb:Ferengi
apatite
|
|
gptkbp:awards
|
vitreous
|
|
gptkbp:characteristics
|
birefringent
pleochroic
|
|
gptkbp:color
|
gptkb:green
|
|
gptkbp:composed_of
|
Ca Ti Si O5
|
|
gptkbp:depicted_in
|
transparent to translucent
|
|
gptkbp:difficulty
|
5 to 5.5 on Mohs scale
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Sphene
|
|
gptkbp:is_found_in
|
gptkb:item
metamorphic rocks
syenite
|
|
gptkbp:location
|
gptkb:Brazil
gptkb:Myanmar
gptkb:Norway
gptkb:Russia
gptkb:Tanzania
gptkb:USA
gptkb:Sri_Lanka
gptkb:Madagascar
gptkb:Native_American_tribe
|
|
gptkbp:melting_point
|
about 1,500 ° C
|
|
gptkbp:notable_work
|
Sphene from Canada
Sphene from Madagascar
Sphene from Myanmar
Sphene from Norway
Sphene from Russia
Sphene from Sri Lanka
Sphene from Tanzania
Sphene from the Brazilian mines
Sphene from the Himalayas
Sphene from the USA
|
|
gptkbp:occurs_in
|
igneous rocks
|
|
gptkbp:origin
|
from the Greek word 'sphenos' meaning 'wedge'.
|
|
gptkbp:social_structure
|
tetragonal
|
|
gptkbp:surface
|
3.4 to 3.5
|
|
gptkbp:uses
|
gptkb:item
|
|
gptkbp:varieties
|
brown sphene
colorless sphene
green sphene
orange sphene
yellow sphene
|