Upon close investigation, this negative circle space appears imperfect, implying possible organic origins.
2.
It has an organic origin, being derived from decaying wood under extreme pressure.
3.
Today science has identified the true organic origins of pearls but without diminishing their ineffable allure.
4.
At times, there have been clues suggesting an organic origin at the surface in plant and animal life.
5.
The chapters, describing luminosity of phosphors of mineral and organic origins have elicited vivid interest in scientific circles.
6.
Black on white, the sumi pieces are spontaneous and abstract, but with the suggestion of an organic origin beneath.
7.
The natural organics include bone, jet are also of natural organic origin although both are the result of partial fossilization.
8.
The colours were from natural sources and were of vegetable, mineral or even organic origin such as leaves, stones and flowers.
9.
Carbon found in 3.8 billion year old rocks ( Archean eon ) from islands off western Greenland may be of organic origin.
10.
Malaysia, New Zealand, and Australia require labeling so consumers can exercise choice between foods that have genetically modified, conventional or organic origins.