The sugar grains are characterized by granular or powdery consistency (never in crystals) because they contain, in addition to the sugar part, varying quantities of molasses and micronutrients.
Hence the origin of the “Organic” definition. You can manufacture them with many different production methods involving various stages of filtration and cooking of the sugarcane (or other vegetables) juice, which is also the reason why you can obtain a more or less powdery texture.
The original form was sun-dried in blocks. The world of organic sugars is huge: taste and quality can be incredibly different due to the variations in cultivars of sugarcane (or other plants commonly used, such as the Oil Palm), methods of purification, and different technologies used to achieve the solidification.
Unique method of processing of the blocks of whole sugar.