Assertion: carnelian's colour | /r/HasProperty | uniform dark blue
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: These fakes are detected by gemologists using a number of tests, relying primarily on non-destructive, close examination of surface structure under magnification; a featureless, pale blue background peppered by flecks or spots of whitish material is the typical surface appearance of natural turquoise, while manufactured imitations will appear radically different in both colour (usually a uniform dark blue) and texture (usually granular or sugary).