Zeolites are more like a family of mineral ... Some of the more common mineral zeolites are analcime, chabazite, clinoptilolite, heulandite, natrolite, phillipsite, and stilbite.

Each has it's own hardness. Most are in the 3-5,5 range.

Yes, by re-aligning your Cauldron of Vocation to an upright position; it changes your eating habits and allows angel contact by allowing the alignment of the 3rd Cauldron of the Spirit; which brings you the valuable information that you need to change your eating habits which benefits your health in every way; including; but not limited to weight loss.

Zeolite is actually not a mineral, but the name of a large group of minerals, that are silicates with framework structures containing open cavities in the form of channels and cages. This framework makes them excellent filters with a multitude of uses. A few common zeolite minerals are analcime, chabazite, and heulandite. Zeolites of the World by Tschernich is the best reference on these minerals.

Zeolites are more like a family of mineral ... Some of the more common mineral zeolites are analcime, chabazite, clinoptilolite, heulandite, natrolite, phillipsite, and stilbite.

Each has it's own hardness. Most are in the 3-5,5 range.

Some chemical compounds can have more than one crystal form. Calcite and Aragonite would be such an example.

In addition, there can be substitution of one element by another of similar charge and mass. In a specimen of heulandite I have, some of the original calcium has been replaced by barium, and eventually by strontium, to the extent of about 10%.

The mica group would be a good example of various forms of very similar minerals.

To some extent it depends upon how strictly one conforms to the definition of a mineral with 'a fixed chemical composition'.

Additionally, the effect of including trace contaminants is well illustrated in the various silicate crystal gems.