It is unusual to find natural untreated tumbled citrine. These tumbles are from Brazil.
The stones measure approximately 0.7" in length.
Natural citrine has long been one of our favorites of the quartz world. Iron inclusions in the quartz formations give rise to beautiful hues of yellow to yellow gold. This desirable color is often imitated by heat treating amethyst, which gives a more orange hue to the crystals. Natural citrine stimulates the solar plexus and crown chakras assisting one to bring higher vibrational energies into the physical body. It can give you an energetic pick up at any time by placing at your solar plexus and breathing deeply for a few minutes. Visualizing bright white energy streaming into your solar plexus will boost its effect. The warmth of citrine has a soothing effect that counters anxiety and stress. Personally, I use citrine in conjunction with labradorite to help keep panic/anxiety attacks at bay.
Citrine is also known as the "Merchant's Stone". It is quite helpful in acquiring and maintaining wealth. It is an excellent stone for clearing the aura and for aligning the auric body with the physical structure, diminishing the "muddy" areas in both the aura and the physical body. It can act to stabilize the emotions, to dispel anger, and to encourage one to "look toward the sunrise", the freshness of beginnings and the reality of excellence.