Yellow is Citrine CRYSTAL Tree and other is Calcite CRYSTAL Tree

Citrine 

Citrine is associated with positivity and optimism, which is not surprising given its cheerful color. It's often used to assist in manifesting financial abundance and opportunities. It can also be used to awaken the solar plexus chakra, helping to cultivate confidence and personal power

Calcite

Calcite has the ability to amplify and cleanse energy, as well as clear and balance the chakras. It can also absorb and transform negative energy. Calcite is a crystal that calms the mind and enhances mental clarity, and it also connects the emotions with the intellect