These are Indian Agate gemstones. They are nicely polished, and come in different colours, ranging from blue to red and more.
The photo is to show natural variation, and you get one of these fantastic gemstones.
Measures approximately 30mm x 20mm.
Agate is a variety of chalcedony which is a microcrystalline quartz. Agate is a more translucent microcrystalline quartz, whereas jasper is more opaque. There are many, many different types of agates in many different color combinations, and they are found all over the world. Different types are known for different appearances and/or properties. The ones shown on the left are natural Brazilian agate.
Agate is so popular and so widespread that it is the state gemstone (or stone) of a number of US states: fortification agate (red, black, yellow bands), Kentucky; agate, Louisiana and Montana, Tennessee (state stone); Lake Superior agate, Minnesota; blue agate, Nebraska; Fairburn agate, South Dakota; prairie agate, Nebraska (state stone); fire agate, Arizona.
Agate's most noticable properties overall are balancing yin/yang energy, courage, protection, healing, and calming. Historically it was placed in water for cooking or drinking to dispel sickness. The Metaphysical and Healing Properties Lore of any specific type of agate depend to some extent on the color of the agate, but all agates have certain things in common.
Agate enhances creativity and strengthens the intellect, making it a beneficial stone for both students and artists. It is also known as a good luck stone. As a stone of harmony, one of the things agate does is balance yin/yang energy. Agate increases energy. However, because it is a grounding stone, it does not increase energy at all times, but rather enables bursts of energy as needed. In this way, agate is a conservation stone, and enhances longevity.
Agate is a very protective stone. It is especially protective for children, and makes an excellent stone for children's amulets, medicine bags, jewelry, or just to carry around in a pocket. Agates are said to be especially useful for protecting children from falling.
Emotionally, agate gives courage, emotional strength, self-confidence, and dispels fears. It can also lessen feelings of envy by grounding the emotions. In the same way, it assists with acceptance of all things. It can be very beneficial for self-examination as well as examination of the circumstances one finds oneself in. These qualities make agate superior for easing anxiety and stress.
Agate can cleanse and stabilize the aura by removing and/or transforming negative energy.
As far as relationships go, agate is a stone of marital and romantic fidelity.
Agate can strengthen the body and the body's connection to the earth. It also increases energy. Agate enhances healing of all kinds by bringing the elements of the healee into harmony. Physically, agate is particularly helpful with tooth and gum issues, stomach problems, physical endurance, insomnia.