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.
What is an eating disorder? Eating disorders are associated with significant physical complications and increased mortality. The mortality rate for people with eating disorders is the highest of all psychiatric illnesses, and over 12 times higher than that for people without eating disorders. Eating disorders occur in both men and women, young and old, rich and poor, and from all cultural backgrounds.