Characteristics:
1. Color: Ranges from pink to deep red, with the most valued shades being a vivid, intense red.
2. Hardness: A corundum mineral with a hardness of 9 on the Mohs scale, making it very durable and suitable for daily wear.
3. Clarity: Often has natural inclusions known as "silk," which can affect clarity but are generally accepted in high-quality rubies.
4. Luster: Exhibits a vitreous luster, giving it a glossy, reflective surface.

Benefits:
1. Astrological Benefits: In Vedic astrology, Ruby is associated with the Sun (Surya) and is believed to enhance leadership qualities, confidence, and authority. It can also bring fame, success, and prosperity.
2. Mental and Emotional: Ruby is thought to boost energy, motivation, and passion. It may help in overcoming fears, increasing vitality, and enhancing emotional resilience.
3. Physical Health: Believed to support circulation, strengthen the heart, and improve overall physical health. Some also consider it beneficial for boosting fertility and energy levels.

Particulars:
1. Authenticity: Ensure the Ruby is certified and genuine. Natural Rubies are often preferred over treated or synthetic ones for astrological and value reasons.
2. Wearing: Typically set in rings, pendants, or earrings. The gemstone should be set in gold or a similar metal for optimal effects. Consulting an astrologer is recommended before wearing.
3. Care: Requires regular cleaning with mild soapy water and soft cloth. Avoid exposure to harsh chemicals and store it properly to prevent scratches and damage.

Rubies have been valued for centuries not just for their beauty but also for their perceived metaphysical properties.