Calcite and dolomite are very similar minerals. Both have the same hardness (H = 3), the same rhombohedral cleavage, and are found in identical geologic settings. The best way to tell one from the other is the acid test: a drop of 1 M HCl on calcite produces an instant, obvious fizz; a drop on dolomite produces slow or no obvious bubbling. Frequently, you have to use a knife point to powder a small area of dolomite to get a visible reaction to a drop of acid.
The factors that contribute to the onset of an eating disorder are complex. No single cause of eating disorders has been identified; however, known contributing risk factors include: 1  Genetic vulnerability. 2  Psychological factors.3  Socio-cultural influences.he factors that contribute to the onset of an eating disorder are complex. No single cause of eating disorders has been identified; however, known contributing risk factors include: 1  Genetic vulnerability. 2  Psychological factors. 3  Socio-cultural influences.
The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) renamed Feeding Disorder of Infancy or Early Childhood to Avoidant/Restrictive Food Intake Disorder, and broadened the diagnostic criteria.pecific food avoidances could be caused by food phobias that cause great anxiety when a person is presented with new or feared foods. Most eating disorders are related to a fear of gaining weight. Those who suffer from ARFID do not have this fear, but the psychological symptoms and anxiety created is similar.