Each Crystal has it's own attributes and can be used in specific ways. For example there are crystals which give access to another world - past, present or future - either earthly or extraterrestrial.
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Others may attract abundance into our lives.
A geode gathers and holds energy (releasing it slowly) but a cluster rapidly radiates energy in all directions. These shape specific properties influence our choice of use and can make the difference between a crystal doing a wonderful job or not working at all:
Citrine clusters> attract abundance but allow it to flow away again.
Citrine Geode> Allows us to keep our money. (and a single point can direct it to a specific place)
Please note: Crystals can be powerful allies but should be used with care and under the guidance of a qualified practitioner.